I don't know if it works with girls, but I know a woman named Cindy who doesn't look at a guy's face to tell if he's a hot number or not. She can always tell by intuition. Guys aren't so smart at this. They talk on the mobile and convince the lady she's going out with a nice dork, only to realize she comes around with a boyfriend that looks like he's got a nine-inch nail.
Profile photos can really trick you, so ask the girls how to learn to intuit whether someone is a gravy date or not. But I'd stick to the guideline, if I were you.
