Press the green flag and watch.
My little, 1 year old cousin started this, and she made all the grown-ups in the room do it with her. When she took off the hair of Mrs. Potato Head, she would say uh-oh. When she put the hair back on Mrs. Potato Head, she would raise her arm in the air and yell yay. That's how I got the idea for this project. I might add sound to it soon, so keep looking at it.