When Josh hurdles a defender, stiff-arms and pancakes a would-be tackler, or takes a hit going for a first down, his teammates are thinking, "I need to step up my game." I was always inspired by coworkers who went above and beyond. I felt like I didn't deserve to be their colleague if I didn't strive to improve myself. That's leading by example. And the most effective managers I had were like McD: they had high expectations, and if you didn't meet them, they offered advice and constructive criticism without chewing anyone out.
My Dad wasn't much of a talker and he rarely lectured, but he was a model citizen, an excellent husband, and a great father. My siblings and I learned from his example.