first Let Your Device Doze
One of the main features introduced with Marshmallow is called Doze. This saves battery life when the phone or tablet is not used, reducing background activity and checking new warnings less often. As soon as you retrieve the device, it will return to life. Android 6.0 activates Doze automatically when it detects that your phone or tablet is not in use, so there are no options to set up: just make sure that you do something worth the life of your battery.
2nd Testing app permissions
App permissions have been changed in Marshmallow and are more (wisely silent) iOS-like. Instead of requesting permissions on the front, apps request them as needed: permission to use the camera when taking a photo, permission to use your location when you open a map, etc. It also means that you can approve certain permissions and not others within the same app (for example, Facebook may have access to your location, but not your contacts). Go to Settings, select Apps, then tap the gear icon followed by App Permissions to turn on or off.
3rd Converting USB Type-C
This is not a tip you can use on a device that you have updated to Marshmallow, but you will notice it on new Android 6.0 devices (e.g. . Nexus 5X and Nexus 6P). The new operating system delivers USB Type-C support, the premier USB standard that supports faster data transfer, faster charging, reversible cables, and multitasking (so you can output video and load the device at the same time). USB Type-C has begun to appear on laptops, including the new Apple MacBook and the latest Chromebook Pixel from Google.
4th Enable Google Now … on Press
Android's Digital Assistant Google Now has got some extra superpowers with the release of Marshmallow – especially the ability to see what's on the screen and understand the context of what you're looking at. Long press the Home button to enable Google Now on Press and when you repeat an action in the future, you will get information relevant to the app you are in and the information it shows. A movie can link to Wikipedia or IMDB records, for example, or a local company can lead to links to directions and its official website.
5th Ask questions about your apps
Google Now on Tap also works with your voice to test the new context-aware features. Start Google Now as usual with a long press on the Home button, then speak your question and suppose the virtual assistant knows what's on the screen: try "who's this?" When listening to a song on Spotify, for example, or "when does it appear?" When someone mentions a movie in an email. Since more apps adopt the Google Now on Tap standard, it should be even smarter.
6th Select your own Quick Settings
The Quick Settings panel is the one shown on Android when you drag down with two fingers at the top of the screen. In the latest release, if you press the cog icon above the panel for a long time, you can enable a System UI Tuner record in the device setup app. If you follow this menu entry, you can change which plates appear on the Quick Settings screen and move around them. It is also possible to hide certain icons (such as Bluetooth or Airplane mode) from the status bar.
7th View battery level as a percentage
This is another entry in the hidden System UI Tuner menu, so if you have not enabled it, refer to the previous tips (long press the checkbox in the Quick Settings box) . Third-party modding software has enabled you to see the battery level as a percentage of the status bar for some time, but now it's a built-in feature – go to System UI Tuner from Settings and then tap Show embedded battery percentage. If you want to know exactly how much juice your device has left in a moment, then it's the way.
8th Back up your apps
This is more of an app developer tip than for app users, but that's something everyone should be aware of. Android Marshmallow allows apps to backup data and settings to your Google Drive account for free. This means that when you sign in to a new Android device, as well as finding all your contacts and emails on-site, all of your apps will be in the same condition as when you left them – provided that the app developers have decided to take advantage of the feature.
ninth Share fast to apps and contacts
The Android Menu has long been one of its strengths – how you can send almost anything from one app to another with a few cranes – and it became even smarter in Marshmallow . When you touch Share in an app, the mobile OS brings up your contacts and apps you share most often, so if you're a frequent tweeter, Twitter will likely appear first when you share a link. All other apps and contacts are also displayed, but your favorites are pushed to the top.
10th Change the default apps
As a desktop operating system (and unlike iOS), Android allows you to set default apps that are automatically selected to open websites, images, text messages, and so on. In Marshmallow, the way this works works slightly: If you go to the Apps entry in Settings, tap the cog icon and select Default Apps on the following screen. You can edit these associations. Point to browsers, for example, and you can choose something other than Chrome to act when you try to view a webpage.
eleventh Get Web Access Smoothly
This is another feature with more interest in app developer, but you should take advantage of using Android Marshmallow. Apps can now use Chrome Custom Tabs to display webpages without leaving the app (in Twitter or Facebook, for example). It means all of Chrome's benefits, including your synced passwords and existing logins, without having to jump to Chrome and back again. Developers can also customize toolbar colors and action buttons for these custom tabs for a seamless and fast experience.
12th Show how much memory your device has left.
Android has gradually given users greater access to some of the features behind the scenes previously dolted. New in Marshmallow is a memory manager so you can see which apps take up your device's thinking power and cause it to crash – From the Settings app, tap Memory and you can break down the statistics over the past three, six, 12 or 24 hours. If you choose Memory used by apps, you can see the worst criminals with severe memory usage.
thirteenth Select Text in a Flash
If you spend a lot of time choosing text on your Android device, you'll be happy about this enhancement – especially those of you on smaller screens or with limited finger board. If you press and hold a word on the screen, it is highlighted as usual, but then you release your fingers around, selecting words rather than individual characters (if you still need precise choices, drag either of the blue handles back). Additionally, the menu bar that displays mowing, copying and sharing is rejigged so now it flows close to the text itself.
fourteenth Pull right for voice access
The eagle eye has noticed the shortcut icon in the lower left corner of the lock screen now activates a voice search rather than linking to the dialer – obviously we are driving all web searches now rather than calling each other. Drag up and to the right to access Google Voice Search and run a question online (such as the age of the prime minister). Any attempt to run a personal search on Google (for example, "My Flights" or "My E-mail") will not return a result if you fail to get the locked screen security first.
15th Manage Volume Levels in one Place
Android 5.0 Lollipop Volume Control sometimes confuses Android Marshmallow trying to repair some of the damage. If you press the volume button, a simple slider appears on the screen – press the down arrow with the slider and you can change media, system and alarm volumes from the same popup. If you need more control over the volume head to the Sound and Notification screen in the Setup Utility (Alternatives as standard ringtones and vibrations can also be configured from here).
16th Set up a "Do not Disturb" Character
Google has also tweaked the "Do not Disturb" setting to make it (in theory) easier to use. Visits Do not disturb the Sound and Messages screen in Settings and it is possible to list contacts and events that can break through all silence walls you set while in priority mode. To select your current mode, open the Quick Setup panel and press Do not Disturb – The options are Only priority (only alarms from specified apps and people make a sound), Alarm only (Alarm only makes a noise) or Total silence.  17. Go to your favorite apps first
The news to the Google Now launcher (where Android Marshmallow is based) is a appbox that lists your most used apps first if you're on the phone – You See the new feature as soon as you click the All Apps button (usually in the center of the homepage) and there is a search box at the top to save you by browsing the page for a page of apps to find what you're looking for. The scroll bar on the right can also be used to quickly navigate through the installed applications.
18th Unlock Your Device With A Finger Press
Samsung and other manufacturers have taken fingerprint sensors on Android hardware for a while, but Android Marshmallow is the first time the feature is supported by the operating system (so you should see a lot more phones and tablets in the future) . Google's own Nexus 5X and Nexus 6P are two of the first handhelds from the production line to get this sensing technology – you can use it for unlocking your device to purchase apps and games from the Google Play Store.
19th Do not Worry About Links Between Apps
Our final development-focused tips cover links between apps – and again we mention it so you know why your Android Marshmallow experience will be more seamless and uncomplicated than before. In previous versions of Android, by clicking on a URL for a URL, a link to a tweet or something would provide a dialog asking what app you want to use to open it. In Marshmallow, these links can be pre-encoded to automatically open their default programs, so there is no additional screen to press.
20th Find Your Files
Android has a file manager at last, even though it's arudimentary a hidden in the operating system depth. If you go to the App app, select Storage and USB, you can see how much space is left on your device – if you scroll down to the bottom and touch Explore, you can browse the different folders on your smartphone and tablet. There are not many features here but it's a start (and if you need a more advanced file manager, there are many third party options in the Play Store).
21st Download it for Android Pay
This is a bit unbelievable because it's only available in the US now and it works with Android 4.4 and later (not just Marshmallow), but we'll mention it nevertheless because it's a big new Google product. Like Apple Pay, you can pay for goods with an NFC enabled smartphone, wherever the service is supported. This is not the first time Google has had a crack at a mobile payment service, but this time it will hope for serious traction.