Be Authentic

It all begins with being authentic.  Look people in the eye, not because I tell you to, but because you appreciate it when people do it to you.  Pay attention to what they are saying, actually actively listen.  Respond sincerely, clearly, and directly.  Sometimes your response may be something that's not easy for you to say, or easy for them to hear, but if you do it honestly and with respect you'll almost always get those things returned to you.