It seems to be pretty trendy to teach your kid sign language these days to help them communicate with you before they're truly verbal. In fact, when I ask a patient's parent at work "How many words does he/she have?," they invariably answer something like "2 or 3, but also a few signs too."
Joseph really couldn't care less about signing. It took about 6 months just to learn this one.
And to be honest with you, we always knew he wanted more anyway. He always wants more! But it's a cute parlor trick, isn't it?