Some dorm questions

[Popinjay]

I leave tomorrow for college (LMU) and have some questions about dorming. I got kind of fk'd and am in an all boys dorm with two other guys (but will be moving at the end of 1st semester to a co-ed dorm with 1 roommate). So,

Is it cool to sleep naked?

Can I play Avril Lavigne frequently on my speakers?

I'm not planning to do drugs or drink (I've done em before a lot and don't think it's worth it), good idea or bad idea?

That covers all my questions for now. Any other advice people have is welcome.

edit: oops forgot one, what is the accepted etiquette for jerkin it?