The following information is all about Cultrual Differences in Korea. Don't forget to get your TESOL Certificate before leaving!
Cultural Differences
There are many different types of people teaching English in Korea. Some are professionally trained with degrees in TESOL; some hold postgraduate degrees in other disciplines and are teaching in Korea because they want to experience another culture; some are teaching English while doing other work, such as research; some are teaching English while looking for other jobs; and some are merely passing through.
Most of these people bring their own unique expectations to their jobs, as well as their own individual reactions to the circumstances in which they find themselves. Some expect to be treated professionally and are shocked when they are not. Some expect to make a lot of money but later realize that they are actually earning about the same as a unionized bus driver in Seoul. Some expect to receive a large Western-style house and are disappointed to find themselves living in very modest accommodation. Being aware of cultural differences before you start employment as a teacher in Korea will help you prepare for any disappointments you may encounter.
The Status of Foreigners in Korea
Korean society makes a sharp distinction between an individual's inner circle of family, friends and business colleagues, and outsiders. Members of the inner circle must always be treated with absolute respect and courtesy, while strangers are treated with indifference. Korean society is not egalitarian: a person's status is strictly defined in relation to others.
This information is provided by the government publication Teaching English in Korea. Please refer to it for the latest updates.