1- if it's hot where you live, take your clothes off. If you walk around fully clothed, you look like an idiot. If you are fat, or ugly, still take your clothes off. Fuck what other people say. You probobly don't like them anyway, so why would you discomfort yourself, just to make them more happy?
2 - Do what you feel like, good or bad, just be yourself.
3- WEll, I think the first two allready covered about everything.
