Sometimes it can be hard to tell if a chick is just being extra friendly because of her job, or if she's flirting. Most of the time, I just keep it moving.
However, I did get a phone number from a Rite-Aid cashier years ago. This Rite-Aid was a block away from my apartment, so I was in there all the time. This cute brownskin jawn would always chat me up when I went in there. I didn't think nothing of it at first, but every time she saw me in there, she made it a point to flirt with me. She always made sure I came to her register, even if she had to open a new one up for me. This went on for months (keep in mind, I was younger and dumber back then). One day, I finally grew some nuts. I slid my phone across the counter, and discreetly told her to add her number (the store was busy, so I didn't wanna make a scene). She quickly obliged, and put her number in my phone.
We talked for like a week or two, but I ended up meeting my ex around the same time, and getting serious with her. In addition, I also moved apartments around that time. Therefore, I never got to smash the Rite-Aid chick. She was badd, too. I kick myself for not keeping her around for a little longer.