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A Rotary Club president might ask her members, “Why do you suppose we have an attendance requirement in this organization?” in order to increase attendance. A car salesperson may ask the customer, “Why are you looking at a Hyundai today?” in order to increase the likelihood of getting the sale. Parents might ask their children, “Why is it important to treat other people with respect?” in order to encourage kind behavior. A doctor may ask his patient, “Why should you be exercising more?” in order to increase patient compliance. Asking “why?” in these ways forces the listener to actively engage in any “because” reasons that follow. People are always more likely to take an action if they think it is their idea. We tend to diminish other people’s ideas and inflate our own.
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Tim David (Magic Words: The Science and Secrets Behind Seven Words That Motivate, Engage, and Influence)