Korea is a drinking culture, and their national booze is soju, a clear, vodka-like drink.
Soju is drunk out of shot glasses, and like all liquor in Korea, it’s always served with food. Koreans drink in boisterous groups, regularly clinking glasses, while shouting geonbae! (cheers) and one shot-uh!
At night you will see men coming out of norae bang (karaoke rooms) and staggering through the streets, laughing, singing and arguing. Just be sure to avoid the puddles of reddish-vomit often left behind, which are also known as kimchi flowers.
Koreans have strict drinking etiquette: never pour your own drink, and when pouring for someone older than you, put one hand to your heart or your pouring arm as a sign of respect.