1. Remembering to say, “Yes sir,” and bow. And there’s a lot of bowing.
2. Remembering to kihap (that means “yell”) when you kick or punch.
3. Counting to ten in Korean. (I tried to follow along in my head but got confused around number five, and then the rest of the class left me behind.)
4. Having the instructor stand and watch your every move and never smile.