Can dogs smile? Every time I rub my dogs belly and he rolls over, he opens his mouth and it looks like he is smiling. Is it possible?

Yes. My nutsy dog smiles at me also. She is a very happy dog and has been mrs. happy dog from day one.

Oh for sure dogs smile! They have all sorts of ways to let you know how they are feeling. My Niki smiles at me all the time. It's so cute isn't it?! My friends notice when she's smiling too, and they point it out to me... but I already knew ;)

Yes, we had a shepard/husky and everythime we got home he would dance around and pull his lips up over his teeth and smile from ear to ear.