Just stop by her work and say hello next time you go there, and ask her if she'd like to talk on the phone sometime away from work or go get something to eat after work, etc ... lots of options. All she can say is no, and if so then you know she's not interested. That's the first thing you need to find out.The girl who I really like works at Walmart but I can’t talk to her while she is on the clock or it won’t be professional on her part I went to school with her and never gained courage to ask for her number.