Six Ways to Show More Courtesy to Others... From the writings of Dale Carnegie...

If you haven't thought about courtesy, stop now and give it a thought. Here are some suggestions that will help you to develop an habitually courteous attitude:

1. When talking with another, listen attentively. Don't assume a bored attitude, or allow an "I knew it" expression to flicker across your features.
2. Don't interrupt another when talking. Let him talk himself out, even though he be a complainer. If you interrupt him, you are implying that what he is saying isn't worth listening to.
3. Get the name of the speaker, if he is a stranger to you, and use when occasion arises.
4. If the speaker is wrong in a statement, never onctradict him flatly. If necessary, mention, after he has finished, that you always thought thus-and-so, and add that if you are wrong you are glad to be advised.
5. Don't assume an air of importance. Never allow the speaker, or your companion, to feel that he is inferior to you in any sense. He won't think himself inferior, and he will resent you if you show that you think he is. If you have had superior advantages, he will attribute that to your luck, not to you.
6. Apologize when you have been wrong.