Good luck, Meg!
I have found that most people are caught up in the things that they are doing and don't look carefully at others, even when things are obvious! As far as sitting next to someone for 3 hours, if you are nervous, then don't talk to them. Again, they will probably be caught up in what they are doing, and if not, they probably won't make any negative comments. Remember, they have no idea how you might react to a negative comment!
Best of luck, and let the rest of us girls know how things went.
