Most of Europe, excluding Italy and a few others, would be Introverted. In these it's not common to start conversations with strangers in most situations, and when strangers have to talk it's far more often formal and stilted than in Extroverted cultures, in which a sense of familiarity is garnered very quickly. The same is true, so I hear, of China and Japan. The USA and Italy have among the most famously Extroverted cultures, others being the African countries I'm aware of (e.g. Egypt, Ghana, Nigeria all extremely friendly in public).
France: ISFP. Famous for the importance placed on visual arts, fashion and cuisine, and has a collaboratively rebellious streak (the Revolution, frequent cross-industry strike action etc.)
Lebanon: ESFP. Extremely fashion-conscious and stylish with a high demand for plastic surgery. The party capital of the Middle East. Chaotic roads with drivers not knowing the few rules and the police, until very recently, not caring about them either. Friendly and warm in public.
England: IXFJ. Particularly emphasised values include propriety, tact/inoffensiveness and modesty. Like to support an underdog over a hot favourite, even if the underdog isn't very good. Literature is probably the most respected artform (N) and there's a strong tendency to romanticise or long for the past without ignoring or forgetting its faults (S).
Sure we're not as J as Germany but who is? The drive to arrange ourselves into orderly queues at every opportunity gives us away.
Scotland: ESTP. Reputation for high levels of alcohol abuse, poor dietary habits and crime, and for people being outspoken, straight-forward and blunt.
Ireland: ENFP. Sociable, upbeat, stories and poetry important, tendency to not take themselves or authority figures too seriously yet is one of the most religious countries in Europe.
USA: ESFJ. Being less than outgoing and not wearing your heart on your sleeve is almost pathologised; extremely patriotic and in love with tradition (both the left and the right). Hard-working and concerned with other people's private lives (both celebrities' and politicians'). S probably wins out but N is also very prominent, especially historically. Quite well balanced in that area.
Germany: ISTJ. I agree with Lightyear, based on the perceptions we Brits have of it.
And Lightyear is absolutely right that alcohol changes everything for a growing number of Britons, our drunken alter ego being an unhealthy ESTP. The binge drinking epidemic is supposedly much worse for us than any other European nation, but there's no general consensus as to why.