I've spent some time in the US and in Finland. Both countries are so different on extroversion / introversion.

Here in the US, I have to talk on the phone to people to get anything done; in Finland, when I wanted to do complicated things, I just had to type things to someone (I even got my dog's import health stuff sorted without ever speaking to a person).

As an ambi-vert, I like a mix of both.

Interesting fact: in China, introverts call themselves 'spiritually Finnish'