TS
1st: make friends with him
2nd: research about his likes and dislikes
3rd: (as a friend) pamper him with his favorite things in a reasonable way
4th: And assuming that he has no current GF, try to talk about YOUR love life...try to be sentimental

(if he has a slight liking for you...even a small bit) he will fall for the bait. If not? then the game is over for now...then repeat the 1st - 3rd moves until you achieve the desired effects
By the way TS, I am a Man but how the hell do I know this things?....Most of my previous GF's pulled that kind of trick on me in their own devilish ways of expertise
And I was the romantic fool who kept on stepping on the trap
