u/Competitive_Band_266

Theres this girl I see every time I go to this convenience store near me and she's really pretty, shes spoken to me before and sorta knows who I am as in she knows my name but not much about me and she doesn't really look at me when im waiting in line or anything but she does give a certain look when im paying for my stuff. She recently accidentally gave me the amount I owed as change so I took it back and she was all like "oh thanks for being honest :)". But I really wanna ask her to be my gf but idk how. Do I just ask like that? Do I ask to go out? What do i do?