There's a certain smile a lot of young women use in photos on social media and something about it is irritating me. I guess because it looks posed rather than a natural smile. Or maybe I'm wrong and it IS their natural smile, but I'm seeing it more and more so I believe it's a trend. It's hard to describe but it looks like just the corners of their mouth are curling up... I tried to find an example but without doing screenshots from social media which isn't cool, I can't find one. Does anyone know what I mean and why am I seeing this smile a lot?