Anyone here from/ever been to South Korea?
I have been there for work several times, but I mostly got to see offices, factories and the inside of hotel rooms. Koreans work hard and expect it from everyone else. Korean guys have no concept as effeminate as
machismo. You don't say where you'll be working, but if it one of the major cities, and especially Seoul, expect people to be in a hurry; a New York minute is an eternity compared to a Seoul minute. As in all East Asian cities outside Japan, be careful crossing the street until you have got a feel for the aggressive traffic.
South Koreans are proud of their "high-tech" society, but a surprising number of services (using WiFi at a café for example) can be a pain to use if you don't have a Korean citizen registration number. I only ever made shortish trips to Korea, while you'll be staying longer, so I don't know what documentation you will need. Your employer should be able to guide you. Speaking of employers, Korean society is much more hierarchical than you're probably used to. People like factory managers, and I'm guessing school principals, tend to run their domains as personal fiefs.
I'm assuming that you're not going to live in Korea without having some idea of the complex relationships, and difficult history, between the countries of East Asia. The Japanese occupation is still a sore point in Korea, as it is in China, and Koreans love to beat Japan at
anything. Relations with North Korea is a tricky area best avoided, or glossed over with "it is a difficult situation" or something. South Koreans do tend to be damn proud of their country, with good reason, but claims of their nationalism should be taken with a pinch of salt, because "nationalism" is typically no more than the name given to the patriotism of people who live in other countries (because everyone knows that
our country is
really the best, right?), and it is the extremists that make the news.