I take a similar approach to GLO and others in that the gym is serious business, not for picking up girls.

I happen to be resting between sets on the cables.

Girl: Are you using these?

Me: Yes, but we can swap on rest

Girl: That's ok, I will wait till you are done

Me: The other cable station is empty

Girl: I know but I can't find enough grips

Me: Here is the other one (on the floor next to the universal machine)

Girl: I don't like that style. I've never used it before

Me: Ok, I'll put you down as scared to try new things

Girl: Laughs and introduces herself