So I was about to clean the restroom (employee and customer restroom), and my female coworker walks ahead of me right before i opened the door after knocking, walked in, and was in there for about 10 seconds max. And then walks out, no sounds at all (you can hear the toilet and sink going because the walls are thin), and then she walks out. As I'm cleaning and get done with the first cleaning rag, i open the trashcan to throw it away, and find a paper towl with a kiss (?) on it. Not smudged from what I can tell. Is she hitting on me, or am I just reading this all wrong?