Ok theres this girl in my class that is smoking hot.
Some days i manage to game her pretty well, but most days i dont get a chance to even talk to her. Some times i make her laugh her ass off, one time she laughed so hard people told her to shut the fuck up. The conversations gets some sexual tension now and then and i get tons of ioi's.
but here is the deal,
But the next day she is like yesterday never happened and her bitch shield is all over the place

do u guys do anything outside of class? if not, you might want to explore that option because gaming her in class is cool and all but once she steps out the class room it seems you are forgotten.

sounds like you're doin the right thing... they're just like fish. Sometimes they're hungry, sometimes you gotta make em bite. I think your best bet reel that HB in the next time you get her laughing and givin you IOIs. Just tell her your goin to get some coffee, food, bla bla bla, and she should come with (don't really ask her, just tell her she should come with you)... when she resists, just tell her it'll only take a bit cause you've got a meeting with a prof, you're meeting with your friends, etc. Hell, everyone's got 15 min to spare a day right?

If all else fails, you can tell her "hmmm i kinda figured you for being fun and spontaneous" (cause every girl claims/wants to be), pass her shit test, then give her your phone (for the number close) and tell her prove you wrong with a big grin on your face

Yeah you gotta get her out of class, she is sitting pretty hard in a social rut, her frame is set in concrete as to "I am in class. This is how I will act in class." Boring, if you ask me. Also, kinda wierd if she doesn't have any carryover from your friendship the day before.. or are you maybe exaggerating things a bit?

I mean, if you honestly had to start over from step one every single day, then you really shouldnt bother with a girl like that, sounds like mental defects. That or she is reaffirming her nonattraction to you each night for some reason, like she has a serious boyfriend perhaps.

maybe she was on her period? ..or you need to be more specific with what your saying to her so i could identify the problem