While Susie was doing her talk, I wandered around the MPH bookstore, and stumbled across a book that professed to give 98 non-verbal tips for better interpersonal communications. In my brief scan, several tips that I read seemed odd, and one was downright creepy (the epoxy eyes technique for attracting the opposite sex, if you’re wondering). But one good tip stood out: every time you walk through a doorway, straighten up, adjust your posture, and enter the room alert and upright.