What If the Students Don't Respond to Questions?

When no students answer my question, I play a game which decides who has to answer the qeustion, and at the same time gets the students to exercise. The game is called "The Big Cross" (大十字). Here is how it goes: I call a seat number. The student with the seat number raises his/her hand. The others who sit in his/her line both vertically and horizontally have to stand up. The slowest one has to answer the question.

Whenver we play this game in class, the students become very excited, just like kindergarten kids. In fact, when I say, "Now, the Big Cross," all the students straighten up. When the number is called out, the target students stand up as fast as well-trained soldiers. Good!