well its maybe not optimal to do the same on random strangers, but it would work as well if your act is good. (that's why he can practice it on random strangers).
even though you have never seen her, you could pretend you have seen her
saying "who are you" will take you straight to qualifying her.
normally you would first have to attract her with great stories or gimmicks. but if you straight out qualify her (and you look high value / you have a good first impression), she'll assume that you assume that she's already attracted to you (because of your looks or your high status or whatever). this is the mindset that you plant inside her when you skip attraction. like telling the girl "i know you want me, you look ok, but i dont even know you, i need to know more, who are you?". you dont say it in those words, but thats how the girl should feel.
so you go in like a sniper BOOM
to make it more optimal for a random stranger:
you could also do some attraction after qualification, attraction doesnt neccessarily come before qualification, you can mix and mingle it.
attraction is just the glue for her to stick around while you game her.
if you feel that the girl is not really responsive to your "who are you"-questions and is likely to leave any minute, then you just say "i actually have to get back to my friends / go to some shop /whatever"...."BUT.... you just remind me of a really cool story... / i just learned something really cool..." and you start your attraction story or routine...
she'll love it and then she'll stay put... and you can go back to some qualification after you have "glued" her
for a random stanger, you would really have to yell "STOP". its even harder to stop somebody new than somebody you have seen before.
you could make a joke out of it if she stops: "wow it really works, you really stopped! you are crazy! you dont even know me!"
she: haha
"so who are you?"
...
you get it
if a girl blows you out (if your act was wrong and you want to do damage control), I know a way to attract/glue them back to me:
hey dont disrespect me... you wanna fight? *stand in boxing position* you & me outside now! *BIG SMILE*
no no no, but seriously....
I can handle you… But I don’t think you can handle me…
> I can / Whatever
Ok I actually have to return to my friends / go to XYZ shop before they close *false time constraint*, but before i leave i'll prove it to you!
Option 1: give me your hand… how good are you in thumb wrestling… *thumb wrestling*
Option 2: Are you smart enough to lie 5 times in a row? *5 questions lying game*
but this should be enough for today...now i'm fed up with typing...
