To see if you can spot a genuine smile from a fake smirk, click on the link marked 'gallery' in the blue box below. Each subject has been photographed twice - posing with a real grin and a false ...

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 ...

Netflix Of the smile to Oppenheim, Honigman believes that “Chrishell's smile is broad and genuine, all her teeth are showing, and they're even parted, which makes this a joyful smile.