I have a question about cashiers that stare at you?

So a week ago I walk into a restaurant to pick up a order for someone and there was this girl at the cash register that locked eyes with me from the door to her register, I told her I was here to pick up a order and she told me which bag to pick up. I was on my phone trying to take a picture of the order cause I do doordash and I look up and she's still staring at me. She then moved around the cash register to sweep up the floor. Was she trying to make sure I didn't steal the food or was she interested in me? there has been other times where girls at the register show interest but this one Im not sure.

I have a question about cashiers that stare at you?
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