What is the uniting factor of all preps?

It’s a desire to look… like you’re at ease.

I think that’s it more than anything. It’s not to look rich. It’s not to look educated. It’s not to look smart. It’s not to look studied. That should be the opposite of it. It’s to look… like your life is easy. You can sort of just slide from one thing to the next, from class to class, from desk to date, to whatever opportunity presents itself, and you’ll be OK somehow.