Try Face Unlock - Asus Nexus 7 Manual Book

drag something instead). For example, you can slide a Home
screen left or right to view the other Home screens.
• Double-tap: Tap quickly twice on a webpage, map, or other
screen to zoom. For example, double-tap a picture in browser
to zoom in, and double-tap again to zoom out.
Pinch: in some apps (such as Maps, browser, and Gallery), you
•
can zoom in and out by placing two fingers on the screen at
once and pinching them together (to zoom out) or spreading
them apart (to zoom in).
• rotate the screen: on most screens, the orientation of the
screen rotates with your device as you turn it. You can change
this in display settings.
Settings

Try Face Unlock

depending how you use your phone, you may want to set some
form of automatic screen lock to prevent unauthorized access. if
a lock has been set, the screen locks when your tablet's display
goes to sleep.
When you touch the power button to wake up a locked tablet, you
must take some action, ranging from a simple swipe to typing a
lengthy password, to unlock it.
Nexus 7 Guidebook
To change your phone's ringtone and notification
sounds, volumes, and more, go to
Device > Sound.
To change your phone's brightness, font size, and
more, go to Settings > Device > Display.
PLAY & exPLoRe
Settings >
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