Oral Sex Advice Guys Only Please?

Guys I want to give my boyfriend the best bj of his life, but the problem is i'm not quite sure how to do that. Could you please tell me what girls have done to your "little man" to make you climax so amazingly that you shake or even pass out? I don't want to do the boring up and down movements, I need new bj positions and tongue techniques, how to use my hands. Anything like that would be greatly appreciated. Thank you!