How Android 12 lets you control your phone with facial gestures
A new accessibility feature that is being introduced with Android 12 allows you to control your screen using facial gestures: raise eyebrows, smile, open mouth, look up, look left, look right. This feature, called “Camera switches,” uses the phone’s camera to watch for these gestures and allows them to signal simple screen operations. These operations include: go to the next actionable screen object, select an object, go to the previous object, touch and hold, scroll forward, and scroll backward; you can also pause the camera switch itself.
It’s not a long list: it only includes six facial gestures and not all that many actions. However, it’s a beginning, and it could be useful if you can’t use your hands to work your phone’s screen.