How do you act like a teenage skater boy?

Buy some skate shoes and tight pants with dark colored shirts-Don't have to be black, but heavy bands are good. Don't act like someone you're not, otherwise you're a straight up poser. Buy a studded belt too, buy a skateboard-learn to use it, so you won't have any trouble finding friends that are also teenage skaters.. and actually fitting in with who you'd like to become.