The vast majority of women do not notice you before you're standing in front of her, saying hello.

Honestly, if you're on a woman's radar before approach, it's because she has a strong opinion about how you look, how you conduct yourself in public, or what she's heard about you. When this opinion is positive, that's when you end up with that field report where there was nothing you could possibly do wrong.

When it's negative... well, you'll know when it's negative (abort! abort!). You get the cold shoulder, polite and yet unenthusiastic response. Or impolite and also enthusiastic. Essentially, you learn about the "Art of No" in these interactions.

Either way, most women are not paying attention to you when you enter the room - unless you did it in an especially flamboyant way, like being admitted VIP to a club, or pulling up in a really nice car that's worth more than their house, or being a celebrity... but that's another conversation for another day.

You do not exist in her world, until you're standing in front of her.

That said, get this into your head, especially if you thought women weren't visual creatures:

A woman is able to make a decision within the first minute about whether she's going to give you a chance. Sometimes even less that that.

"Not visual." Hah. True, in the sense that they don't obsess over male aesthetic as vice versa.

However, they can tell a lot of things about you by looking at you. If they see you approach, they already have an idea of whether you're passably confident, or pissing in your pants.

So, when you approach, don't sabotage yourself with body language that second guesses (slouching, walking up, pausing, continuing - a big no-no). Speak clearly. Be polite, but stand closer than you would with a platonic friend. Smell nice. Also, you better be dressed well for your environment - handle that shit. Having some chill friends around, or at least knowing the bartender is a big plus.

Since your social resumé isn't something that you can realistically write down and hand to someone while expecting a response in good faith, you need to make sure that you're showing it off visibly and verbally.

Pass that first minute with a positive impression (way easier said than done, obviously), and everything else is comparatively easy. Your escalations will be met in kind, and the girl will be rooting for you. Why wouldn't she? She has a positive first impression of you.