Stop furrowing your brow and take a nice, deep breath. Relax. Today's activities will go very well. You don't have to worry about lacking the skills or the charm you need. You are perfect just the way you are. All you have to do now is prove it to others. Put yourself in their shoes, look at things from their perspective, and you'll be fine. And remember that you need to evaluate them, too, just as they're evaluating you.