Paying It Forward  As the world fights to figure this all out, I'll be holding doors for strangers, letting people cut in front of me in traffic, saying good morning, keeping babies entertained in grocery lines, stopping to talk to someone who is lonely, tipping generously, calling you by the name on your tag, waving at police, sharing food, giving children a thumbs-up, being patient with sales clerks and smiling at passersby and buying a total stranger a cup of coffee, as often as I am provided the opportunity. Why? I will not stand idling by and live in a...