It's really like a different reality.
Coffee before work? Sure thing. Another coffee after work? Absolutely. Drinks in the evening? Definitely.
The thought of not seeing your friends for a month or longer is just absurd over there. If you don't see them regularly they're not your friends. The whole culture is built around spending time with people, and I only realized that after I left.
I enjoy living in the US, but man, I do miss having such a social life.