I have about 4 or 5 regulars that are older gentleman that like to wait in my line because it "makes the wait nicer to see a pretty young woman". Totally their words not mine.
Honestly, if it weren't for me having all guy friends that I work with who tell me what other guys outside of our circle say about me, I'd be clueless. I don't blatantly get hit on at work, but I also work with my husband so take that for what it's worth.