There are only two ways to influence human behavior: you can manipulate it or you can inspire it. When I mention manipulation, this is not necessarily pejorative; it’s a very common and fairly benign tactic. In fact, many of us have been doing it since we were young. “I’ll be your best friend” is the highly effective negotiating tactic employed by generations of children to obtain something they want from a peer. And as any child who has ever handed over candy hoping for a new best friend will tell you, it works.