Overview
You might not be as impressive as the people around you today, but the worst thing you could do is to sell yourself short! You have your own set of skills, and you excel at things that others do not, so if your ego is feeling weak, just focus on that fact for the day. You can't shine every single moment, so step back and let the experts take over while you sit and watch -- and learn. When you're not the smartest person in the room, you get the chance to figure out how to improve rapidly.
