You continue to flip your wrist toward your mouth, as if you’re trying to conduct an orchestra.. I think you do it when you’re trying to tell me you want milk. I’m serious!! I think you’re trying to communicate! I read in a sign language book that babies will make up their own signs. You’re sooo smart Ava!! It’s very cute. Here's a clip of you doing it while in Florida... Pay no attention to your Dad's perverse attempts with the camera!