Only ever chatted a girl up once. We'd seen each other a couple of times at a bowling alley (eye contact only, no words) & actually bumped into each other in the middle of London (long way from where we both lived) & made very small talk for a couple of minutes.
Next time I saw her at the bowling alley I had to say something, even though I was surrounded by my mates & she, hers. I was about to say "So, do you come here often?" but as I started the sentence realised how awfult that was so thinking quickly decided to ask "Are you a regular bowler?" instead. Unfortunately something got horribly lost in translation and with everybody listening, the very words that came out of my mouth were, "So, tell me, are you regular..?"
It worked though!