Very simple, and it's foolproof. Tested it once, works. Wanna test it more, badly. =)
I've never seen it before but I can't imagine it hasn't been said. If it's new, I claim it.
Just fill in the *XXX* yourself depending on your situation. I was in Germany so I used Germany. If you're in a different city you can use the city you are sarging. If you're from that city you're sarging you can use the name of the club or part of town ETC ETC.
The Sinsitive K-Close:
PUA: "Hm, I've heard girls from *XXX* are SO shy, they are too affraid to kiss even if the guy says "you can kiss me" and closes his eyes."
HB: "oh haha noo that's so not true! bla bla bla"
PUA: "Let's find out!" *close eyes* "You can kiss me!"
If she doesn't just open them after like 2-3 sec and say "See?"
From that point TURN AWAY for 90 degree and show some playful disinterest. She will feel like she fails and might eventually kiss you just to show she's not "so shy that she is disqualified from you".
In my fieldtest, she kissed me.