This is to be used in a club or bar.

You look for a 5-6 girls group. When the group is divided or spread, you ask one of them what's the name of your target, but your target mustn't know it. Then you approach your target:

Me: Hi, I bet one shot I guess your name.
HB: O.K.
Me: Right, give me 3 attempts, it's not that easy, you know.
Me: Laura.
HB: No
Me: Helena.
HB: No
Me: Last attempt. Let me see your hand.

Then you hold her hand and start touching the lines. Look for eye contact.

Me: you must be "her name"

Then, from my experience, 3 things may happen:

a) She invites for a shot. Now is very easy because you isolate (you go with her to ask for the shot) and you can easily escallate (Kino, C&F...) , Kiss close, n close...

b) She starts to look at her friends, and one of them tells her that she told you her name. Then you say : I never lose, you know ; and you keep going the conversation around that topic. Then you ask her if she wants to have a shot.

c) She says that her name isn't "her name". This is the best point:

Me: Right, I lost, I will pay you a shot.
HB: O.K.

You go with her, ask for 2 shots and before she takes her shot, you drink both of them.

Me: I know you are "her name"

Now the same as point a)