Description: How to set up your Nexus 7 so you can open the lock screen by blinking your eyes. This uses a feature called Face Lock.

1. Open Settings.
   
2. Open Security.
   
3. Open Screen Lock.
   
4. Select Face Unlock.
   
5. Select Set it up.
   
6. Select Continue.
   
7. Make sure you look at the Nexus 7 straight on, so the camera can pick up your face.
   
8. When it captures your face you will see this screen.
   
9. Check Liveness Check so it requires you to blink to unlock the screen.