For me, people tend to think I am mean or cold because I have a very intimidating resting face, and I have a very monotonous and sarcastic sounding voice.
However, later on after we become acquainted they laugh and tell me that I am the complete opposite of what they thought, and how ridiculous they feel that they were scared to talk to me.
I understand why they’d be intimidating. I’m tall and really pale with dark hair and I usually wear dark makeup.
If you want a sort of visual, I’m kind of like Boo Radley. Vampire version.