sometimes I think guys try to make it too complicated. Dont forget what you say can do more damage then what you dont say and your body langauge of confidence is what speaks the loudest.
'Hi my name is ___' reach out your hand. if she offers you her name without you asking for it stay and make chit chat about the moment, what she is wearing or the place you are at if at a bar or other social type of enviroments (day game is different you pretty much have to explain why you approached her but night game you can relax from that).
'hey I like your ____'. something about what she is wearing that you honestly like because a 'good' sh*T test would be her asking you what you like about it.
and in a dance club. check this out, its something you can ask anyone.
'are you having fun tonight'