Try and pick one stereotype be it meathead/jock, pervert, geek, straight, stoner, etc, that most typifies you.
Me, I'm a geek through and through. Most people who have only met me for the first time immediately think I'm a rugby-playing jock because of my build but those who know me better remember me when I wasn't this size. At one of my primary schools I actually had a few of my closest friends decide to stop hanging out with me because I used to spend all my lunchtimes in the library and to be honest I never had many friends until I got to highschool. Although I easily spend the majority of my waking hours thinking about my lifting I think that's only because I've turned into a gym geek. I will spend hours upon hours on my nightshifts trawling the internet for the next gem of lifting knowledge. I also am an irrepressible geek over comic books, fantasy authors such as JRR Tolkien and Terry Pratchett, and music. Even my wife will say the same thing, though I'm sure in her books "closet homosexual" and "slacker" come a close second and third.