words

You will say one word and then the next person will say a word Ex. Person 1: Once person 2: upon then it continues! the first word is: Once

I have a Korean friend that I did recently, sometimes we chat and we do it in Korean usually since I'm learning the language. sometimes she put together sentences or I show her exercises that I do to which she responds sometimes things like: "오~ 잘 했어요" the meaning of it its "well done" (잘했어요)...