What you will need is:
- A pen
- Sticky Paper

First off, rip a bit off tha sticky paper into 3 squares. Just do 2 big ones and rip 1 of them in half.
Next, connect with your artistic side and draw tha two eyes on tha half papers.
Then start on tha mouth.
Tha reason for these are when u close your eyes, all your teacher would see are tha 2 eyes that you drew so draw them so they're life like. And tha mouth part is so if u drool, tha sticky paper will hold your mouth shut and your drool wont leak out :D
Now all u have to do is apply tha fake eyes over your eyes, and tha fake mouth over your mouth :P