I was riding a packed, not-so-fun airport train when I watched a dad perform a little magic. Right before the doors were about to open, he leaned down to his son, waved his hands like a magician, and said, "Swoosh." The doors opened, and the kid looked up at him with an expression of wonder in a place that was anything but wonderful. I used to do similar things with my own kids, saying "Everyday magic" right before an automatic door opened, using the "force" to turn up the music in the car, and changing the color of the traffic light, among other things. They were convinced I had actual powers. Dads, inside every ordinary day there are these 30-second pocket windows to perform everyday magic. No plan, money, or free Saturday required. Here are 6 ways to get better at being a fun dad. 1. Ride the ride. When I drove my kids to preschool, we had a song. The same one, every single...