Stare intensely at the clock, pretend you're on a deadline, and hope your colleagues don't notice the drool stain on your chin.
Take it to the next levelA bag of stale chips can be a powerful motivator. Just don't try to sneak them into the conference room.
See where this gets youThe classic "I've got to go to the bathroom" or "My cat is on fire" excuse. Just don't try this one at home.
When in doubt, flee