first, u gotta go up, b a gentleman & introduce urself. 2nd., have a nice chat until both persons r comfortable, 3rd., observe her vibes & c if she's kinda interested a not, usually u can tell after a small chat, eye contacts & other lil' gestures, last, end the night w/a polite summary of the conversation, say thank you for the good time & nicely ask if it's possible for u to get her # to con't tt good time on another time & place ! just b honest & tt will bring u a long way.