Just because some punk kids talk crap to security guards and old ladies and happen to have skateboards in their hands doesn't mean we're all that way. I've met mean security guards and mean old ladies. Anyone can be mean.

Don't be afraid to fall, and don't be afraid to ask someone for help or tips. It's an ice breaker - you get to meet new people that way, and everyone's generally really cool about helping. I have little kids asking me to show them stuff all the time. I don't mind at all. It's fun.