Credibility: My JOB is to open females.. I am the only guy working in a clothing store in the mall that only sells girl clothes.

First: girls judge you right off the bat on your presentation... U can't be dressed like someone who's thirsty or they will shoot you down off principle. Button ups, fitting clothes, clean look... Go the extra mile & u'll get alot less resistance when opening.. Some times I experiment by intentionally not looking that sharp.. It makes it harder, but not much if you know how to compensate with socially inteligent behavior.

Behavior: you can't ACT thirsty.. It's ok to be reasonably awkward.. Because it's normal.. I think it even seems more genuine when you fuck up every now n then but laugh it off... But you can't be too shaky, or they will either think you have a hidden agenda (which u do) or your weak.

What helps:
-smile!!!! It's disarming, it makes people want to smile back.
-speak loud!!! My opener.. Is how u doin?......that's it!!! That's all u need.. Just say it loud & they will respond.
-be unreactive but not cold.. When they smile n giggle or w.e. U can build a little sexual tension by letting them laugh a little bit by themselves like a dork then maybe come back around n be warm n laugh at something they say.. N it's Like 2x points cuz u built anticipation for it.

Calm down: this is NOT rocket science, there is no right or wrong here.. It's fun.

Justify it: Make the convo seem like something that started as an innocent courtesy.. Like saying hi or what have you.. Then push it into a really fun interaction that just coincidentally happened & you should leave her wanting YOUR number.. Read her, game her, escalate.. Then leave her feeling like she dosent want to go, so she should stay in touch by giving u her number..just make sure ur reasonably sexual in a situation appropriate way.. Even little jokes like "that's what she said" all work her.. DONT telegraph interest or sexual desire till you have some type of rapport or connection... excluding qualification when u feel like shes attracted (because girls usually shut u down off principle)