The biggest culture shocks working in a European city

A view from Italy.

Career: same thing here.

Smoke: it's not cool but it's accepted. People have to get out of restaurants to smoke a cigarette.

Hanging out at home: same thing here, maybe a little less true in winter (it's cold in the north.)

Sleep: very true for Spain, especially because they live in the wrong time zone and get one extra hour of light all the year round.

Dressing up: not particularly true for IT jobs here, but I don't know what's the standard for the USA.