Like the song says, it's not what you do, it's the way that you do it.
What ever you are doing, make lots of eye contact. Smile, let him know you are enjoying his pleasure. Don't be afraid to ask him what he wants, and be enthusiastic, assuming you want to do it that it. Follow your instincts if his breathing quickens, and he sighs, he likes it, if his body (the rest of it that is!) goes a little tense, then switch to something else.
Different men like diffferent things, but explore him, and find out where his erogenous points are - not always obvious. Try the lobes of his ears, his back, he eyelids, and the very back of his jawbone, just ind his ears - try kissing there with a little moan, which he will hear because his ear is about an inch away - and whisper something sexy. Result!