The only good thing I ever learned from The Attractive Man was the CQC method
Compliment
Qualify
Close
Compliment - You approach her and say something you like about her that is not her tits or ass, you could mix it in with asking for directions or something but you need to make it clear you find her attractive to not come across as a "friend"
Qualify - Second step after approaching is to get her to qualify herself to you by asking her something such as "Tell me a cool fact about yourself" or "What is something you are passionate about" or some other bullshit and it flips the conversation where she is trying to find an answer for you to switch the power dynamic of the conversation a little more in your favor.
Close - 3rd and final step is to close the interaction, at this point you end since you have to go or whatever, the trick he said was to say "I will let you put your number in my phone" or "I will let you follow my instagram" again your just flipping it that you are not asking you are LETTING her get your instagram or whatever then you just finish it.
Cold approach is a meme anyway but I imagine you could use some sort of thing like this in a warm approach if you had some sort of hope of ascending for whatever reason, this information is useless to me since I don't talk to foids.