If you make the cut, just remember that this is, basically: show business. It's Alex's job to keep a palpable tension on the set because people who can't even begin to deal with the content of the show intellectually also tune in, and watch the sponsor's ads, just to see who falls on their face. I'd like to say "Stay loose", but that doesn't make it. Stay as uptight as a maiden aunt on the Bronx Express subway at 3:00 A.M.
Smile, nod, remain stoic, and... focused on the board. Fuck Alex. Let him natter on and make his little jibes and just nod and smile and stay focused on the flow of the information and your own train of thought. Have a sense of elan about yourself. Feel confident even if you're falling on your ass. That's a huge part of surviving in public. You're the big deal. You're intellectual prowess is the raison d` etre for the whole event. Believe that. Oh yeah, and if anybody asks, tell them all about how you always dreamed of being on this show and how excited you are. They eat that BS up with a spoon.
That's why everybody on the show is usually so wooden. You've got a live audience, pen gizmos, about 40,000 watts of fresnels and moving lights around you, audio in the house bouncing around, monitors everywhere....
Screw that. Stay focused on the board. If you treat it lilke a very stressful job, which, basically, it is; you'll kick ass.
Good luck.
---
I wanted my half in the middle and I wound up on the edge.