I've been considering teaching Charissa sign language. I've somewhat resisted because .... well it's just something I've never been interested in and so far I've always known what Charissa wants. I looked on the internet and found two sights that are helpful for learning some basic signs. So have at it - learn to say something with your hands!
First 100 Signs - This website has pictures of each step of the sign. It also has a dictionary of the American Sign Language.
My Baby Can Talk - This one has video clips of a woman doing the signs. It has less words though, and some weird choices.