That' my issue. I have no idea how to tease, flirt, etc. Which is probably why I am single
You cannot force flirting. It has to come naturally. And the first thing you have to do is become comfortable with yourself. Once you achieve that the rest will come naturally.
Believe it or not, women are people, and they actually converse with other people. You said you talk with her. There's a start! Keep talking. Ask her about something that interests her. Compliment her shoes. Hoo boy, if you compliment my shoes I'll tell you where I got them, and what size they came in, and how this particular brand's sizes are so different, and how they feel after a day's work. Yeah, I kinda go on about shoes.
Ask her how her work was yesterday or how her classes are going. Ask her for coffee. If she says she doesn't drink coffee tell her you'll buy her a water. Be loose. Be funny but not a comedian. Be smart, but try not to talk about yourself. So many times guys are trying to sell themselves, and that's not what we're looking for. We're looking for someone fun and nice to be with.
Don't think that being the quarterback in school makes us want to have sex with you. There are waaaaaaay too many factors that have to be processed before that option is even a consideration. And nowhere in that equation do we factor in weenie real estate. We already assume that you have one. Let's leave it at that.
OK, be comfortable, be friendly, be nice, and talk about her but not in a creepy way. Yeah, there's that too.
And sometimes just be quiet together. Not awkward quiet, just together quiet. You have no idea how loud that speaks.
Did I miss anything?