Will looking like Jack

We have family pictures hanging next to our table in our kitchen. They were from last fall when Jack was only a couple of months old. There's one picture with just the two boys and Jack is under Will lifting up his head and making a weird face with his mouth open. So, the other day Will was talking about those pictures and said that Jack wasn't very happy and his face was like this (then he did his version of Jack's face, mouth opened and all). It was hilarious and actually looked a lot like Jack. Funny boys.