I met a girl but have no idea if she is lesbian or not?

So I have been going to a bank near my college twice now, and the first time I actually started to engage in conversation with the bank teller there. She was telling me stuff about a credit card company (she thought they were trying to get my info so she was warning me to be careful) and I forgot how but we started talking about college. Basically I am going to school to be an LCSW, and she was too but she dropped out cause she was scared because it is a hard job. Well we continued to talk to a little more but then I had to go, she wrote down my banking info for me and left, and then a week later I went back to the bank. When I went to the bank she was my bank teller again and we started talking more, and was telling me more personal info about her like about how her family has history of drug addiction, where she is from, and stuff like that. I asked her for her name and she told me it then I told her my name but chucked and said she prob already knew it since my info is in front of her, and we laughed and shook hands and I had to go. I said to her I'd see her next time and that was it.


I had a sense of interest coming from her side because I've never met a girl (and esp at a banking or other business) who wanted to talk that much about myself or just off topic from what the reason of me being there. I think I am pretty attracted to her and just felt the same from her but I'm not even sure if she is lesbian or not. Could she just be really nice or actually into me? And if so, how do I make a move? I was thinking of just going back there on December 3rd cause I get paid that day and to deposit money and try asking her to get coffee with me sometime.

It's hard to find lesbians around my area because we are a rare breed here so that's why it's hard for me to figure her out!