Dillogic:
Yes sometimes I do question if I misread females but other times it doen't seem this way. Once walked to mcdonald's a mess, was tired and walked fast/in a hurry looking. Once I'm actually in the shops, girl my age with her family kept looking at me and I exchanged eye contact back a bit. Maybe she was actually thought I looked very creepy and for this reason was staring, maybe was actually checking me out. I don't know but I know she kept looking at me and no, I was not the one who started looking first. It actually kind of threw me off when I realized she kept looking at me.
Happened another time as well. Sitting a few tables across, perhaps she thought I was looking/staring at her when I wasn't trying to. I was looking in a variety of directions and may have accidentally glanced here and there but then stopped. But with the corner of my eye I could actually see she was outright staring at me. Again, maybe she was trying to catch me looking at her because she thought I was when I didn't mean to, maybe she thought she was 'doing it back' just to make me uncomfortable on purpose, or maybe she was also checking me out (again, I was shirtless as even if I was dry I was swimming just a few hours ago and had that 'rugged' swimmer's look aka scruffy chlorine hair, slightly wet look, etc.)
Another time, went to get the mail, was shirtless, wearing messy boardshorts and my mother's old sandals. Actually got catcalled by some passing females my age. They were clearly catcalling me.
And it's not really simple. Maybe it's just my age (I am judged/stereotyped for being a teen aka suspicious, untrustworthy, troublemaker, etc.) and most teens usually go around in pairs or groups, I do things solo which only intensifies my suspicious appearance. How I dress, how I walk and facial expression make no difference - I still get funny looks, glares, etc. I can dress like my profile picture, walk tall and confident with chest slightly out and head up (without strutting or looking overly confident) and have a light, calm smile. Or I can dress messy, laidback, and walk fast and pissed-off. I still get looked at by adults like I'm going to rob someone regardless. In this case it's not about misinterpretation - people who look exactly at you and look angry (and I don't mean neutral, I mean aggressive) must be mad at you. I guess I do attract slightly less trouble from adults when I dress like my profile picture, but I'm more likely to be mocked/laughed at by teens my age or (immature) young adult males.
I'm not dismissing what you say, just trying to point out I just have no idea anymore...