more outgoing

This made me laugh: The friend she compared me with must be almost entirely mute.

I joined facebook recently because a friend at home invited me. I'm not sure what to do with it, though (other than play Scrabble). So far, most of my friends are people I was kind of friends with in undergrad (only kind of, because I spent more time avoiding people than actually hanging out with them) and haven't spoken to in years, or friends of friends. I was thinking about adding my housemates, at least, but now I'm feeling all shy about it. I feel awkward about claiming people as friends, even though I know it's unlikely they'd say no.
I think my real problem is that my wall seems so public. I don't want to put anything on there in case it reveals something about me. I don't want to have conversations by writing on people's walls because anyone can read it.
I know, I should get over my weird anxiety. Plus, I just added my first friend at Prestigious U and now it's announcing that I only have one friend in my network, so maybe I should add more people so I don't look like a loser...