Frequently characterized by looking up mutual friends or digging through email archives.
Guy 2: I'm trying to figure out how I know this Brittany chick.. she's so hot!
Guy 1: Well she's your Facebook friend, where did you meet her?
Guy 2: I don't know man, that's what I'm tryin' to figure out! I'm doin' Facebook forensics. I found her original request in my Gmail from February 2007, and our mutual friends go to State. We musta met at that crazy Valentines Day lingerie party.
Guy 1: Why didn't you just ask her?