Immigrants who go to Germany are not used to US mentality, they don't have a mandatory few years of pitstop in the US to pickup US mentality before they finally

Immigrants who go to Germany are not used to US mentality, they don't have a mandatory few years of pitstop in the US to pickup US mentality before they finally land in Germany. You are "certain" (literally) about a lot of things that you are typically missing (or rather ignoring) any points the other commenters are trying bring in. Maybe that's also a point? As for work connections - someone just landed in a foreign country and spends decisively most of the "waking hours" with a bunch of people… as in literally, it's not even a metaphor… that's called being human, social, etc.