Say "Cheese"

I recently stated in an earlier post that when Mac sees or hears the camera, he turns to smile. Well, he is still very aware when I take the camera out. However, the smile has turned into a...I really don't know what to call it. A crazy, funny, scrunched up face. I mean, maybe he thinks he's smiling big, but the one left smiling big, or laughing, is the person taking the picture. haha

"Cheese"???