were these cashiers flirting

Of course it means she’s flirting. When a cashier asks you for change it means she is madly in love with you and wants to marry you and have your children.

Dude. The cashier was short on change. She was asking all the customers until she got enough to see her through the rest of her shift.

Did she ask you if you wanted a receipt?

That's code for "meet me out back during my break"

no

I sometimes wonder when they are extra friendly. If they are flirting or just been friendly. Recently it was a cashier at a mid size supermarket two blocks from me. I usually frequent this supermarket as it is usually not packed and i can go in an out, besides its two blocks away. She would always strike conversations with me about my purchases. Like what im i making tonight. Or what do i use this or that for etc. On two occasions she waived me over to her line. Now this girl i would consider a notch above my league. Cutting to the chase my last few visits she has said nothing to me. The first time this happened i asked her if she was ok. She gave me a smirk and said yea.