Both - i'd be nervous about what they'd think of me, but i'd be excited to talk to them in person! My contacts seem awesome, and from their answers, they'd seem really cool to hang out with.
I'm sure that in any situation that's new and exciting, there will be a small amount of anticipation or "nervousness", but I will still be looking forward to it!
depending on the contact, id be looking forward to it... a lot... its going to be a great time! i think id be a bit nervous about meeting some of the others at first