You will need:
To be a kid
To be at school
This is what you need
Step 2: Bribe
You will have to get the teacher let you go to the school bathroom at the beggining of school. Make sure you have your cloth.
Step 3: Wet
You will have to wet the clothe with hot hot hot hot hot water. Next you wait for it to dry about 1 minute. The rub it on your forehead after squeez the water into your mouth.
Step 4: Leave
After that you will have to leave and go back to your classroom, Assk the teacher if you can go to the nurses office because you just threw up in the bathroom. Race down the stairs because the hotness will go away.
Step 5: Nurse
Go to the nurses office and say you have abad fever. When they put the thermometer in your mouth your saliva will be hot.