How to Win People to Your Way of Thinking – Principle 6
Most people trying to win others to their way of thinking do too much talking themselves. Let the other people talk themselves out. They know more about their business and problems than you do. So ask them questions. Let them tell you a few things.
If you disagree with them you may be tempted to interrupt. But don’t. It is dangerous. They won’t pay attention to you while they still have a lot of ideas of their own crying for expression. So listen patiently and with an open mind. Be sincere about it. Encourage them to express their ideas fully.
Let the other people do a great deal of the talking.
* Source: How to Win Friends & Influence People by Dale Carnegie