How do i know if im a good kisser?

so ive never kissed a guy b4. im 14, and sumtimes i feel like im trailing, since the first kiss age is like 10 now. but thats not the point. theres been guys and opportunities with these guys. and i always feel like i shuld make the first move (especially if they dont make a move and they want me to and i want to). a boy has told me b4, "give me a kiss", and i kinda playfully blew him off. joked like it was a joke and stuff. but i wanted to. but it was awkward. theres been moments where ive felt like its comin, then it turns awkward. and i hate wen that happens, and then i never end up goin thru with it. im goin to this guys (like a bf/potential bf) house next week and i wanna bust a move, or like follow his lead correctly at least. thing is, i dont know how. or i dont think i do. how can i tell, or practice. that sounds kinda weird but i dont wanna turn him off. theres all this sexy, crazy, flirty in me that wants 2 come out, but its like i always stop it cuz im afraid or being 2 cautious or sumthin. and i hate that! soo any tips on how to relax and juss go with the flow??? how to quit the shy act and step up the aggressiveness????? i really wanna open up 4 this guy, leave an impression ya know (and i mean that in the most innocent way). this is my last real chance to give him sumthin great (hes gone 4 the whole summer and is movin away). thanx and give all the feedback u can ::::)))))