You will be able to play the classic Pong using your webcam to control the paddle!
You can control it with the following gestures:
Your open hand (5 fingers): The paddle moves up. Your open hand (4 fingers): The paddle moves down. Your closed hand: The paddle stays still.
Three windows will open. One of them shows the detection of your hand—place it in front of your webcam to start generating inputs and begin playing.