I judge people based on the way they act.
I know how to be an ***hole, just as I'm sure you know how to be an ***hole.
Billy, you're good at being an ***hole so I know you know how. (In a funny, lovable way )
I bet everyone here knows how to be an ***hole, and everyone here knows how to be polite.
It's what you choose to do that matters, not what you know how to do.
I know how to break someones neck, or their knees or elbows.
Of all the people I've met from the ME, I've found most of them are inpolite. BUT! That doesn't mean that people who are born in the ME are inpolite necessarily, it only means that the ones I've met have been. People assume to know what they don't.
I've met more inpolite Canadians then any other race of people for the record.