What do you think of Americans if you’re European and vice versa?

I think Americans have gaps in their knowledge, they seem too confident, but in someways extremely intelligent and articulate. I think the accent is very classy. It took me awhile to adapt and to be concise and elaborate in my responses when talking to Americans.
I think most Americans are loud and opinionated so they really learned to be precise and explain everything around their point.
In Australia you don’t have to explain much to get your point across… it’s easy going 😂