- Stand facing the mirror at about arm's length, with your face in the glass.
- Raise one hand to chest height, palm towards the mirror, and hold it still for a second before moving.
- Check the light. A window or a bare bulb behind you, or a very dark room, makes hands hard to see. Even light from the front works best.
- Make sure nothing is in front of the camera on the side of the mirror — a towel, a product bottle, a cape.
- Still nothing? In the app, set the mirror to a mode that uses gestures (quiet and off modes ignore them by design).
Gestures are meant for the person in the chair and the stylist beside it. Someone across the room is out of range on purpose.