I'm trying to get past anything remotely resembling approach anxiety so I can approach anyone anywhere anytime. I don't feel authentic telling a story about a girl-fight, etc. I'm a warm and friendly person, but I'm also very direct...so I think what fits me best is a very direct and natural (for me) opener...."You're cute, are you single?" said in a playfully matter-of-fact way.
I've tried it twice in day-game...here were the responses:
Me (to a 22 yr old HB8 who's already an acquaintance): "Ya know, you're cute...do you have a boyfriend?" The HB8 (smiling): "Ha ha...no, not really." Me: "Well, I don't have a girlfriend either, and I'm a musician. (I make a face that says "Can you believe that?") You know what you call a musician without a girlfriend don't you?" Her (laughing): "No, what?" Me: "Homeless". Big laugh from her, then I start walking away. She said "I don't believe you". I said over my shoulder "It's true!". Her still laughing as I walk off "No, it's not!"
I will be asking her to meet me out at one of my local haunts for a drink, me thinks.
I took my young daughter to dinner at a Chinese buffet that she loves, and a hot lady in probably her 30's and I caught each other's eye twice at the sushi section, so I touched her on the shoulder and said "You're cute...are you single?" She smiled and said "No, I'm married" and held up her hand with a ring on it. I said "Darned" and winked at her. She just looked at me and smiled, which I took as an IOI. I left it at that...I respect marriages and wouldn't pursue a married woman. (This was all out of my little girl's eye and ear-shot of course...I don't want to create any distress for her...attempting a pickup in front of her would.)
It feels totally comfortable for me to just come out with a very direct question that gets to the point.

I'm thinking about advice I've read...how something is delivered is generally more important than what's actually said. I think I do well at delivering this opener with an "I'm curious about you" vibe rather than an "OMG you're hot" kind of vibe.
I'm going to keep using it and see how it goes. I think this one is just so simple and straightforward that I can just blurt it right out before I have any time to think about it and miss the opportunity to open.
Gruuve