Whats was your reaction when you found out a person you know was touching themselves thinking about you? Or how would you react?

I know it's not for everyone, but I totally understand where you are coming from. But, for me personally, I found it hot and took that as a fucking compliment. the cherry on top, she was smoking hot, and I had a massive crush on her

EDIT: I'm not talking about strangers. I mean, people you know IRL