you have to reach a hook point, after which you can game like you would normally game any girl inside your social circle, because then you are no longer a "stranger" to them.. because they like you and want you to stay.
Yes, I agree. I call it establishing common ground, but it is the same thing, overcoming the 'stranger' label.
I have never had to rely on cold approaching, but I respect the guys who get results that way. I have had a lot of sales jobs and experience establishing rapport with strange women, usually to sell them sh!t. Women made up almost all my sales, and it was because I flirted with them and livened up their day. Look them in the eye, make them laugh, and talk about her emotions, and you can sell a woman anything - to get paid or to get laid.
If you cold approach, at least be discreet about it. Don't stand in one place and harass every girl that goes by. That's desperate creepy loser behavior that women detest. You have to pretend that a special connection just happened, so choose your cold approach targets wisely. Simply make casual conversation with a hb you happen to be next to, then become intrigued with each other, then you get a contact method so you can continue later because you have to leave, then you leave. That is a cold approach done correctly - because it does not look like a cold approach. The woman can pretend that it was a scene from a romance novel and feel special. That is what you want, because that is what gets you laid.