This article originally appeared on USA TODAY: Can dogs smile? Here's what your pet is trying to tell you with that sweet smirk. Reporter Clare Mulroy's dog Star smiling for her family.© Clare Mulroy ...

Mona Lisa Effect debunked as scientists find her eyes DON'T follow you round the room The results revealed that 92.8% of participants indicated that the left half of the smile displayed happiness ...

Dogs smile by pulling one or both lips back and may show all or some teeth. The "smiling" is often accompanied by other greeting behavior s, like approaching, wagging or even whining.

Dogs smile by pulling one or both lips back and may show all or some teeth. The "smiling" is often accompanied by other greeting behavior s, like approaching, wagging or even whining.