My dog smiles when he is happy by showing his teeth. It is cute to me but some people think that he is angry because they apparently can't read his excitement.

My dog smiles when he is happy by showing his teeth. It is cute to me but some people think that he is angry because they apparently can't read his excitement. I just think it is really fun to see every time he smiles and he does it pretty much daily, often when it's time for a walk or a run.