she will give you step by step instructions as to how to do it and what guys like.
Personally, I like for a women to go down and really wants to give me pleasure, all the way. No hang-ups when I cum, either. I know it swings both ways, too. I like for her to cum in my mouth, too.
Lots of saliva and some hand work (jacking) while you move your hot mouth up and down his shaft. When you feel his penis getting really hard you can move your mouth off and finish him w/ your hand, or take him in your mouth and let it run out on him, too. You don't have to swallow. Be careful 'bout touching him afterwards, because he will be super sensitive.