u/Familiar-Housing-225

I, 23M, am currently working at a gas station weekdays, from 6am to 3pm. I have a regular who comes in in the mornings to get 2 redbulls, and who I've now been told by a coworker "lit up when I looked at her." From what I've noticed, when she walks in, I'll look at her and she'll alway be looking up at me, and will smile and sometimes wave at me. She also seems to seek out my register if I'm available, as I think I've only seen her go to a different register twice in the mornings when checking out, despite my coworker being right next to me. She's always smiling at me and has complimented my jacket before. There was also a day that she came in with another girl who, while they were checking out at my register, seemed to almost be sizing me up, giving me this almost focused look while the girl who's a regular was smiling like usual. I don't know if I'm reading too far into things, or if she is actually interested in me. I just don't know how to move forward. I've never been the greatest with talking to people in the first place, and I only survive because I use the same 6 lines over and over for every customer. I don't want to make this girl uncomfortable because Im misreading things, so any advice would be useful