Merely stating a truth isn't enough. The truth has to be made vivid, interesting, dramatic. You have to use showmanship.

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.

Remember that the people you are talking to are a hundred times more interested in themselves and their wants and problems than they are in you and your problems.

Instead of worrying about what people say of you, why not spend time trying to accomplish something they will admire.

Talk in terms of the other person's interests.

Take stock of your fears now and see how many of them are senseless. If you are honest with yourself you will probably find most of them are groundless.

So, to prevent fatigue and worry, the first rule is: Rest often. Rest before you get tired.