Kissing 911! Help! Ten Point Best!?

ok, I'm 17, and I've kissed guys before. Recently there was a guy who's a friend and I don't like him romantically, but he kissed me. A few days later, he told me that i kissed his bottom lip. I just found out that i am a chronic bottom-lip-kisser! =O Help! I need some tips on how to kiss well, and please don't tell me that it will come naturally, because obviously it hasn't lol...thanks! And, although it is creepy, could you tell me exactly what y'alls lips do and everything down to the last gory detail?? would be totally helpful! thank you!