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 ...

since this expression is a response to genuine happiness. While technically it is possible to fake a Duchenne smile, if a ...

the key difference between this “real” happy smile and a “fake” happy smile lies in the orbicularis oculi – muscles that wrap around the eyes. All smiling involves contraction of the ...