And also, if you look black and just happen to be mixed you'll just get called black either way.
When I lived in Poland it was... different. Like some friends at school used to tell me that I was black even though I used to look mostly white. It didn't really made sense in my head.
I am one of those people whose 'race' is not immediately apparent to everyone else for some reason, I get confused for so many things so yeah it can be weird for people in between