Enroll in an English hogwan. Hogwans are institutes that offer instruction outside of public schools and universities. In an English hogwan a variety of classes are offered depending on your level and English proficiency. This is a big business so you will not have a hard time finding one in your area. See the Resources below for a list of reputable hagwons.
Become friends with an English-speaking foreigner. Chances are they are just as interested in learning Korean as you are in learning English, so they may be willing to do a language exchange program with you. Instead of paying for their services, you will offer them help in learning Korean. Korea is a booming attraction for foreigners to teach English. According to Travel Wikia, the Immigration Bureau's Statistical Yearbook states that 10,862 E-2 visas, required for language teachers, were granted in 2004. This number has remained basically constant over the past three years.
Watch English shows on TV. If you have cable, you will be able to watch a number of English-language channels, including the BBC and CNN. Watch English movies as well. Try not to read the subtitles as much as you normally would. Go to the Jazib website (See Resources.) to watch live English TV shows as well.
Hire an English tutor. Although this is an illegal practice for teachers in Korea, according to The Real South Korea website, private tutoring accounts for 33.5 trillion won, about 3.95 percent of the nation's gross domestic product. Rates for tutoring range from 20,000-50,000 won an hour. Meet a foreigner and discuss their rates and services or go to Craigslist (See Resources) and click "Korea" under "Countries." Click "Lessons" under "Gigs" for a list of tutors in the Seoul area.
Create a Myspace or Facebook account and chat with English-speaking friends. Although Cyworld is the social networking site of Korea, you can make some English- speaking key pals by using English-language social networking sites.