Every new place, new person or new challenge makes a Sagittarius happy. They have a lust for life that shows not only in their smile, but in their eyes as well. The term smiling eyes could have ...

However, only one of these is a “genuine” or Duchenne smile. Discovered by French anatomist Duchenne de Boulogne in 1862, the key difference between this “real” happy smile and a “fake ...

Wishes: Celebrated on February 14 each year, the Valentine’s day is all about bringing a smile to your loved one’s face and ...