How do i impress and get the hot gaming guy works at pacsun and gamestop?

So I met this hot guy, he's my age and really hot. Now I dont typically date, but I felt a strange connection. He kinda came onto me, and I just playfully flirted. He said I should come back anytime, etc. (dont worry, im not gonna go all stalker on him, geez.) soo hes a gamer, and i want to learn some more about gaming. other than playing the games. whats the lingo...etc? i play halo 3 mostly live and im pretty good...(just saying mvp das right, haha). but i know nothing really about COD (call of duty) etc. whats do you think would impress him and win him? What should be my next move? Btw, his name is Nick!