“A few years ago, I was driving through a remote part of Ethiopia, and I kept passing all these mothers and children outside of their mud huts. Everybody I passed stared at me like I was dead: totally blank facial expressions. It was the most uncomfortable I’d ever felt in my life. “But then it occurred to me, while I was sitting there: I was looking at them in exactly the same way they’re looking at me. So I started smiling and waving as I went by—and it was like I flipped a switch. As soon as I started smiling, waving, and looking friendly, they started waving from their windows, grinning at
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