People always guess i'm german even though i have dark hair and eyes
i just don't get how people can guess stuff like that

how can you tell if someone has a german, french, italian or polish backround?

it's confusing

Magic.

People probablly guess ur german from ur name "German World" Kinda gives it away a bit !!!!

Spiritual Powers

were all really really smart people.

i don't get how people KNOW

They assume, people look at you and compare you with other people of all races. And automatically guess, even if they are wrong.

You could ask them.
Or you could Google it. That always works.

I can never tell, really. If it's from a certain area, there isn't really much of a physical difference between that nation and the surrounding ones.