Sometimes when you open Facebook Notifications on your phone or computer, you see a face you've never seen before--that is, until you glance at the name and realize it's someone you know well. The person has simply posted a new Profile picture--and you didn't immediately recognize who it is. Chances are it's a girlfriend of yours who has taken a new selfie in a stylish pose that she thinks makes her look prettier than the previous shot did. Come on, let's be honest: who ever posts an ugly picture of herself on Facebook?