Hey guys, great question,and young PUA, great opener.
I have studied up on Stealth Game, by Gambler and here are a few things I would try.
1)
Walk up behind her, and not tap, but lightly guide her sholder around, like a friend would do, get her to turn around and say "Oh! I'm sorry! I thought you were my friend Lisa for a second!"
She will laugh and you say "Well, this is the point where i would usually walk away, but you've got an interesting (style, or look, or vibe, or energy, et c.) about you. I'm (name)." (put out hand for her to shake and introduce herself)
or... even better
2) Prime the approach - make eye contact and smile and wave, or point, or do somthing so that she either smiles and waves back, or acknowledges you somhow. If she turns around, or gets a bad look on her face- do not apporach- if she does wave back or somthing, break out of the set you are in with a hug or somthing, then walk over to her directly. she WILL have a smile on her face from the approach primimg. Her parents will then be 70% sure you know her, whether it be from school, or church group, or whatever. Then, as you get to her, put out your hand, or go for a hug, while you say "Hey! How have you been?" (loudly)Then the parents will be 100% sure you know her and will disingage. You can then start gaming her. However, if the parents look at you funny, or ask who you are, just put out your hand for a shake, say "*with a smile*Hi, I'm (name) *look to the girl* "This must be your (mom/dad)!"
Instantly gets rid of parents.
Happy Gaming
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