Go ahead and smile. If someone is watching, you'll likely get a smile in return. It's how we're hard wired, nearly from birth. Social smiles have appeared on the faces of babies as young as five weeks ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (KTVI)- Not all smiles convey the same ...

Today, I will rise from slumber and brush my teeth until they sparkle. With cheeks stretched from sea to shining sea, I will smile. It's National Tartan Day, the annual celebration for Scottish ...