There are so many variations to this, its good because you change it fit your situation. Its fairly simple.

Its so you you know if she is ready to be kissed, reach out and touch her hair (stroke slightly) and say to her something like 'you have really nice her' or 'your hair looks so soft' or one i used 'your always playing with your hair (and add it looks nice or something)'.
If she smiles and likes this, thats when i go in for the kiss.

But sometimes reach back in and start stroking it again, but this time glance down at her lip and back up to her eyes. If she lets you keep touching her hair she is ready to be kissed.

But i dont think its always right to have to do this twice before the kiss, its just to be sure.

Anyway try it out if you ever feel you have to, i cant see how this one can go wrong.

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To effectively communicate, we must realise that we are all different in the way we percieve the world and use this understanding as a guide to our communication with others.

Tripp,

I'm not doubting you at all but just want to know your theory behind saying this. Is it not being semi AFC or is this a perfectly reasonable line to use?

i know thats a reasonably good line to work, mystery uses similar ones also... assume its good stuff

I would echo much of what was said about frame control, you have to have her thinking of sexual topics, showing that your open and comfortable talking and joking about such things, as therefore she will feel that you are used to being sexual around women, i kno for one this is where ive gone wrong before reading pua many times and was allways the LJBF guy.

It where you have to just be a bit riskier and flirty, the reason to hold back is because you dont want to blow what you've allready gained which is natural and hence why it is important to not focus on any1 girl that you are gaming, but spread the risk over many different girls.

It's all in the body language man. You smile, you show her that you are confident in yourself. You should be triggering in her mind that you are not wanting to push her to do something she's not ready for. Hence, the question. Of course, she's already wondering about what it would be like to kiss you. Then you pop the question and her senses start racing, because she KNOWS its coming then.

a slight variation:

Her: Why?

You: Cause I'm trying so hard not to kiss you right now.

From my perspective, this tells her that I am in control. No matter
how much she is driving me crazy and that I want to kiss her, it is
me that is deciding when it will happen.

Also, you're being direct and not beating around the bush.