If you haven't spent hours on end analyzing your face in the mirror, and you're not sure if you have a bad side, let me gently break the bad news: you most certainly do. The right side of your face is your bad side, the left is your good side. Don't believe me? There's scientific proof that it's true.
Researchers Kelsey Blackburn and James Schirillo from Wake Forest University presented observers with photos of people's profiles, and time and time again, the observers said they preferred the left side. The scientists hypothesize that the left side of the face shows more emotion, which is more aesthetically pleasing.
So what does this mean for you? Left is best, right is wrong. If you want to make sure you look your best in photos, you better show off your left side, and if that means darting to the other side of a large group to make sure you can comfortably and naturally display your left cheek, then so be it. A little effort before the pic is snapped will save you a lot of effort untagging Facebook photos later.
Only thing is, make sure you don't share this juicy little secret with too many of your friends. Otherwise, all our photos are going to look like we're on some sort of synchronized swim team, all smiling and facing the same direction.