Hi guys, i have a field work with a girl from 6 months ago (very time i know, but she's from my course in university).
I usually talk to her in bus, it's the best moment, because in university she stands with her friends all time, and i can't be with her.
I know that this girl thinks that i'm mysterious, i see she looking to me like 5 times in a class we have together, in every week, i have to do something, but my game is a little stopped right now...My idea is to get her out with me, but without invite her (i get rejected by her to go study long time ago), the thing is like:

Send her a letter (she have to struggle to find something) with a key, a note inside, and one SIM card, delivered by one friend of mine.
The letter tells her to put the card and go to a certain place. In that place i have put a wood box with a invite inside written by me saying like: wow, i don't expect you find this... see you on coffee x at y hours. Don't be late.

I think that demonstrates very value and she will fight for me, i don't know if i should offer something like flowers when my friend deliver the letter, what you guys think about that?

Best regards, rafinha!

Just ask her straight out for a coffee, a walk, or an alcoholic beverage in a confident and proficient manner.
If she is into you then she will accept your invitation.
If she isn't then it's no big deal. You just need to hang out with other girls, which will reduce any possibility of one-itis and may actually be a way back to your original girl when she sees what value you possess.

Yeah, just go by with asking her straight out.

_________________
"Don't try to change who you are. Don't even think you're not good enough right now. You ARE good enough being who you are. Women can smell a fake man the same way you can smell cheesecake."