I can watch anybody all day long if they're really doing what they're doing. I have a fascination with human behavior, watching people talk, when they pick at their face or how they hold their hand or if they're listening to you, if they're not listening to you.
To book commercials, you do something to get to a callback, and once you get to the callback, you've got three minutes to get the people to want to hang out with you for a day.