I was traveling home from a work trip and settled into my first-class seat , an upgrade, on an American Airlines flight from Hartford, Connecticut, to Chicago. It was the first leg of what was going to be a long travel day, and I was looking forward to quiet time—just me, my book and tech gadgets, and my thoughts. Then the man sitting next to me started talking. I had already sized him up. He hadn’t said a single word before I formed an opinion of him. It wasn’t the first time I had judged