You didn't stick it under all those desks, but you're still banned from chewing gum in class. If you just have to have your Bubble Yum fix, here's how to chew without getting caught.
Choose a gum without a strong smell. Don't chew anything too minty or too fruity. Smell is generally the first giveaway.
Step2
Sit near the middle of the classroom. Too close is too obvious, and too far back is too suspicious.
Step3
Remain silent. If you're talking in class, you're drawing attention to your open mouth. We can all see your gum wad.
Step4
Chew quietly. If you're a gum snapper, snap out of it.
Step5
Try to disguise your chewing by biting on your fingernails or a pen cap. Create a front of fake filthy habits, and no one will know about your true filthy habit.