Ok, for this trick you are going to need to do this with your wingman.
You approach a girl with your opener and within a few moments you mention to her that you have started developing ESP powers and that you can draw out numbers from your wingman's mind.
You then tell her to think of a number between 1 and 10 and to tell it to your wingman.
You then ask her where she would like you to stand as you draw this number from his mind. You may also through in a comment such as "I guess if I stand directly in front of him, you're probably going to think that we have some sort of signalling going on so I can stand to the side or behind him if you like" (She'll probably want you to stand behind your wingman as this way she knows that you have no chance of seeing his face) - Basically, this part is just deflection as it doesn't matter where you stand.
Ok, so standing behind him, you now put your hands on his head, making sure that your fingers are gently pressing on his temples.
Once in this position, your wingman should have his head facing downwards towards the floor and you then ask him if he is ready for you to extract the number. At this point all he has to do is to just clench his teeth (without anybody seeing him do this of course).
As this happens, you will feel his temples tighten up within your fingers. You then say "ok" so that he knows your hands are on the right place and he says "ready".
He then clenches his teeth "X" times (x being the number she thought of).
You make it look like you are struggling a little and look at her for a moment (throw in a little smirk as it also begins to build a slight sexual cheekiness to her about you) also deflection.
Once you have felt (lets say her number was 6) 6 tensions of your wingmans temples, you then ask her to whisper the number to her friend (if she is with a friend) as this now involves her friend also.
You now approach both of them as they are standing close to each other, put your hands on both their shoulders, give her a wry smile and then look at her friend and say "she was thinking of the number 6"
Now watch them both be in complete shock as they try to work out what you just did.
The best thing about this trick is that it brings into play cheeky/sexual smirks, a little Kino and the finale part is that you are now telling her friend the number and having a little joke with her friend, thus making her want to be a little more involved and now she is having to comment to get your attention.
Play this simple routine correctly and not only can you make the entire process last a few minutes and get to find out a little about them, but if you confidently walk away afterwards, this will leave them talking about you as they try to figure it out and after a little while, you may accidentally bump into them at the bar etc and there is a high chance that she will be bothering you as she wishes to find out how the hell you did it, and you now have her in your hands.