If you plan on living in Korea for an extended period of time, you’d better invest time in learning the Korean language. Over the last 15 years the number of foreigners in Korea has exploded, and the demand for learning Korean is at an all-time high.
But where do you start?
Most book store chains in Korea sell a number of educational books for those who want to learn Korean. I prefer the Active Korean series, because the come with a CD and offer clear explaination of grammar and has lots of useful vocab.
Of course, it is easy enough to learn basic Korean vocabulary and phrases, but to really understand context and increase your level the best way to learn is to join a langauge course.
Where can I find a language course?
Many universities offer Korean langauge classes for foreigners. If you live in Yongin or Suwon; Kyung Hee Univ. offer daytime and evening classes.
If you live in Seoul, there are many options, for a detialed account of various language programs take a look at Asia Opion’s review: http://www.asiaoptions.org/korean-language-program-review/