After a tiresome workout at your local fitness center, you enter the gym's lockerroom to change into some less sweaty clothing, you come across someone wiping themselves off with a towel, their sweat-drenched feet propped up on the seat, taking up more than one spot with them. They notice you, and give you a little wave and smile, their toes flexing for a moment, before relaxing. You can already feel the heat rushing to your cheeks.