1. Apply with the teacher and stand for a while, so you won't be sleepy.

2. When the teacher asks a question, whether it is true or not, he should give a positive answer, speak more and speak less.

3. When you are sleepy, pinch yourself hard.

Go for a walk after class and take a deep breath.

5. Go to bed early at night.

6. Bring some wind oil essence and smell it when you are sleepy.

7. Let the deskmate pinch himself with the inside.