Next time you go to happy hour, why not hustle your friends out of some cash?
In the 13th installment of Richard Wiseman's delightful series on simple bets you can never lose, you can pick up even more ways to trick your friends and co-workers into thinking they can outsmart you.
Also on HuffPost:
HuffPost Entertainment is your one-stop shop for celebrity news, hilarious late-night bits, industry and awards coverage and more — sent right to your inbox six days a week. Learn more