From acing an interview to the perfect first date, the safest follow up to ensure a good outcome is a hearty knock on the nearest tree or tabletop. In a pinch, even shiny laminate or your loopy aunt tapping on her head for show can do the trick. Rooted in superstition, many believe that this practice stemmed from pagan Europeans raising a loud ruckus to chase away evil spirits from their homes and in trees. This noise would prevent them from hearing about or ruining a person’s good luck. Over time, the “ruckus” needed was reduced to a simple knock on wood, so either the spirits grew hard of hearing or we just got lazy. Either way, you’re going to nail that promotion—knock on wood.