You just gotta keep it casual and not creepy. Basic small talk, talk about the lessons, what’s going on in your life, current events, etc.
If they’re receptive to that and you start hitting it off, then you can try to go for a non weird compliment or ask if they want to grab some food after the lesson or something.
As for non weird compliments, avoid physical attributes that can’t be changed and don’t be sexual about it. Nice boobs = not okay. I like your hairstyle = okay.
I have the social awareness of a brick but have managed to go from being like anon in the greentext to actually pretty decent at getting girls.
The biggest part is just putting yourself in situations where single women are present so you can practice your casual conversation skills with them, so anon is halfway there.