An easy magic routine I thought of. Either way the outcome is a positive reaction. Field tested on a couple of women.
Tell the HB you can guess what color she's thinking of. Give her the options of Red, Blue, and Green and tell her to keep it to yourself. From here you can play along and pretend that you're actually reading her mind (eye contact and even a little kino works really well here.) Here's where the great part about this comes in.
You only have a 33% chance of actually guessing what color she's thinking of. Most of the time you'll get it wrong, but still able to play along smoothly. Composure is important. One set
Erison: you're thinking of.....green
HB9: nope! red! (ALMOST all of the time she will tell you after. If she doesn't, just stare back at her until she does)
Erison: (smirk) ha gotcha
HB9: what?
Erison: you don't get it. most of the time people will tell me their answer even though I said not to. and I wasn't even done with the trick (smile).
HB9: (laughs) (bt spike?)
Just take it on from there...
IF you do get the color right (which hasn't happened to me yet), playing along with "see...I can only do that with people I have a special connection with" seems like a good route.
Try it anywhere...in public, on friends, online, whatever. Let me know how it works
-Erison