Bars and clubs abound in Korea. There are plenty of pubs, wine bars, sake bars as well as nightclubs all over Seoul. There are also pojang-macha, open-air tents that serve food and alcoholic beverages. These little establishments are usually found along sidewalks near commercial areas. They are great places to mingle with locals. “Hof” is also a good word to remember when out on the town, as pubs that mainly sell beer (and often snacks like fried chicken) are called “hof” (Hof means a place or a courtyard in German, but in Korea, it has been used for a place that mainly sells beer).
In Korea, nightclubs belong to two basic types: a bottle service-oriented Korean-style nightclub and an admittance fee-based Western-style club. The key difference is the basic cost of entry. Traditionally, a group of Koreans enter a club and “buy” a table in a room, complete with a set of drinks (often whiskey and/or beer) and finger foods for the evening. This is a traditional Korean-style nightclub. Many of these clubs exist in the Gangnam area.
One interesting aspect of Korean nightclubs is what's called “booking.” A waiter will drag young Korean women to a group of men seated at a booth to sit and make small talk, and see if there’s any chemistry. If she likes who she meets, she may stay and talk and dance. Otherwise, she flees the scene, making excuses about having to rejoin her friends. In most of modern clubs such as in the Hongdae area, each individual pays a single entry fee and then buys one drink at a time.
[Source : Korea.net]