@b0rk pair with someone the first time if you possibly can - if they're more experienced (even a little bit) they can steer you clear of landmines, and if they're a newcomer like you, they can share your bewilderment. flip side: pair with people (even for a few minutes) if you're more experienced (even a little) and they're new - you'll probably learn something, their increased productivity will help you in the long run, and it's the kind thing to do.
@gvwilson thanks! this is so key, I can't believe I didn't think of it before :)