there are only a few _pointers_ :

1 - do NOT blow (suck), if you force air inside it is BAD
2 - keep the teeth away (or ask him first). It's very sensitive to scratching.

and if you're clumsy and 'innocent' the better... Usually a man wants a girl not an automated blowjob machine with a strict plan and rules.

hope it helps ...

__________________
TmS