Post this in your journal, asking your friends list (or whoever stranger that happens to wander by) to respond with whatever they know about you. It can be as matter of fact as "You're Jess," or as random as "You once had a carnival ride collapse on you."
A week later, write an "about me" post to fill in the gaps in your friends' knowledge.
As an addendum, also stolen from her (because I don't know that I could phrase it any better): If anyone just has questions, actually, this would be a good time. I sometimes forget to make sense to anyone who isn't me.