Before read this make sure you have read 20 facebook tricks from hongkiat.
But there is another trick you can found on facebook site. Here you will get some animation from mouse and keyboard without install any programs.
facebook animation tricks
Up, up, down, down, left, right, left, right, B, A, enter.
That is all you have to do. Just press it wherever at your facebook screen.
what do you think? Cool isn't it?