Thinking about that time I comped a cute girl's meal (she forgot her card and I had a line to the door). She came back after closing hours and knocked on the door. She was really greatful for me covering her meal and wanted to pay me back. I told her it was okay and then locked the door (without a further thought). She then stood there for a bit before leaving... Later a coworker came over and was like "dude, I think she wanted you to ask for her number." You could hear the gears turning in my head after that