If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Move your mouse over the picture of Angelina Jolie, Brad Pitt or Nick Jonas.Look at them, it's like they're in front of a laughing mirror. If you push the animate button you can look at your funny picture while it's moving. You can see the result of your play when you push the done button. You can also load your own picture, because it's also very funny to change the pictures of your own family and friends.