To start drawing, click on 'Draw Pad', click on which colour you want, put your mouse where you want to start and press 'UP' to draw! To stop drawing, press 'DOWN' and repeat if you want to change your colour. You can also clear the pad by pressing 'SPACE'.
Sorry for saying 'colour' but I'm Aussie :) I was originally going to make 'Animation', but then I realised I don't know any animation.