Ever talked with someone who seemed a little off, like they were trying too hard to impress you? Or perhaps it seemed as if the presentation had some holes in it. People can see through insincerity and fake responses.
Show you care and build a quality that demonstrates that you care about how others feel. Be genuine in developing your message. Do you really care about what you are attempting to sell, say, or present? Do you have a stake in its outcome?
Develop a caring quality and it will show. You will reap rewards as people key into your message. Be insincere and you will have lost the audience, likely forever.