Just to add to this: in the US if two cars pull up to an unmarked intersection at the same time, the car to the right has the right of way. This means that if you pull up to an intersection at the same time as a car to your right does, that car has the right of way.

The only reason I bring this up is because a lot of people here don’t actually know this. Usually people use hand motions to tell the other driver to go instead of relying on the rule, but technically the rule exists.

Edit: Just realized this matches the German rule.