I actually have to tell people! They come within my space and my facial expressions get all wierd so I just put it out there. Especially men. Zero tolerance. I made myself hugged my best friends fiancé to show how much gratitude I have towards him for making her happy after all the abuse she has been through. She looked at me like I was off my rocker and asked if I felt OK!
At least we stay aware of who is in our space. In a lot of situations it can keep us safer.

No matter how small, a positive change deserves to be celebrated!