Uh-oh
The girls have for months been eating their pretzels in this way: stick a finger through one of the holes and say, "uh-oh, oh-oh, bite" and then take a bite. Repeat and repeat some more. Henry has now started in on it. He sounds more like, "uh, uh, uh" and then he takes a bite. (Actually, almost everything he says sounds like "uh, uh, uh.")
