If there is a long line and you don’t want to wait in it, walk up to the front (or walk through the back or opposite way) and pretend you didn’t know you were doing things incorrectly. It almost always works. And when it doesn’t, no one thinks it was malicious.
Be in the middle of a book at all times. Better still, carry one with you at all times–a physical one. You’ll be amazed at how impressed people are by this.
Oh god he also links to the Paleo diet.