Whenever we smile, there are 2 potential
muscles we activate. The first one is the
zygomaticus major and it controls the corners
of your mouth. Whenever this muscle only is
activated, it’s not actually a genuine smile.
Scientists call this also the “social” smile. The
second muscle, known to show sincerity is
the obicularis occuli and it encircles our eye
socket.
The true smile also called the duchenne smile,
named after the famous scientist who first
separated the “mouth corners”-only smile,
from the “eye socket” one.
Source: somethingelse magazine

You can call the 'social smile' fake but it actually comes handy in awkward social situations to show courtesy. Instead of loosing ur composure at people, u jst smile at their stupidity.

Behind the so-called 'sincere smile' might be a dark dagger lurking

K kul