Are you hungry?

We have tried baby sign language with Von, but he's really just not interested. He has his own little sign language and language. When he is finished eating, he waves his hand and tells me he's done. Well, we've discovered that he'll use the same language to tell us if he's not hungry in the first place. We did catch it on tape, but as you'll see, he gets tired of us asking. (sorry about the quality--obviously the lighting was not great and I don't know enough to do anything about it. :))