When I got home from work today, I turned on the TV. Before changing the channel, I saw a TV program which showed an English class at an elementary school for a few minutes. In the program a teacher was using a Japanese traditional game, Fukuwarai (make-a-face game) for the lesson. A boy was standing in front of the blackboard and his classmates were telling him where to place the piece of paper he was holding. They were yelling "Right!", "Left!" or "Down!" to the blindfolded boy. Obviously, these were the words they learned during the lesson. At the interview, the teacher said "they learn dramatically when they want to tell something."
It was not really impressing or surprising story, but I did remember that English language is a tool of communication.