Set up the camera

Position a webcam facing the room at roughly screen height, with nothing blocking the view. Make sure the room is well lit so your hand is clearly visible.

Move the cursor

Straighten your index finger and keep the rest folded — the on-screen cursor follows your fingertip like a mirror. Keep your hand at a comfortable distance from the camera so it stays fully in frame.

Hold to click

Once the cursor is over a control (the panels, buttons and bubbles), hold your point perfectly still for 3 seconds. You'll see a ring fill around the cursor, and when it completes, the item is clicked for you. A steady hand makes for a faster, more reliable click.

Thumbs-up for guide

Show a thumbs-up with your other fingers tucked in to open or close this guide any time you need a reminder, without touching the screen or using a remote.