Write the vocab words on a flip chart of some sort. I use an old notebook and write one word/page. Divide the class up into teams. I find that 5-8 people/team works well. One student from the team comes and sits at the front of the class facing his or her teammates. I show one word at a time to the team but not the person sitting at the front. The team has to give hints about the word, in English only, using no body language. An example: EYE. Hints students give: 2, on face, I can see.
I do 2 or 3 rounds of 1 minute each and the goal is to get as many words as possible in that 1 minute. If the team uses body language or Korean, I discount that point. This game is very, very fun. Lots of laughs and happy times.