Develop the dictionary habit.  Be interested in words.  Study them in their contexts.  Make special lists of your own.  Select special words for special uses.  Note significant words in your general reading.

Think of words as important tools for public speaking.  Choose them with discrimination in your daily conversation.  Consult your dictionary for the meanings of words about which you are in doubt.  Be an earnest student of words.

4.  SYSTEMATICALLY DEVELOP YOUR MENTAL POWERS

Give some time each day to the development of a judicial mind.  Learn to think deliberately and carefully.  Study causes and principles.  Look deeply into things.

Be impartial in your examination of a subject.  Study all sides of a question or problem.  Weigh the evidence with the purpose of ascertaining the truth.

Beware the peril of prejudice.  Keep your mind wide open to receive the facts.  Look at a subject from the other man’s viewpoint.  Cultivate breadth of mind.  Do not let your personal interests or desires mislead you.  Insist upon securing the truth at all costs.

5.  DAILY PRACTISE COMPOSITION

Frequent use of the pen is essential to proficiency in speaking.  Write a little every day to form your English style.  Daily exercise in writing will rapidly develop felicity and fluency of speech.

Test your important ideas by putting them into writing.  Constantly cultivate clearness of expression.  Examine, criticize, and improve your own compositions.

Copy in your handwriting at least a page daily from one of the great English stylists.  Continue this exercise for a month and note the improvement in your speech and writing.

6.  PRACTISE IMPROMPTU SPEAKING

At least once a day stand up, in the privacy of your room, and make an impromptu speech of two or three minutes.  Select any subject which interests you.  Aim at fluency of style rather than depth of thought.

In these daily efforts, use the best chest voice at your command, enunciate clearly, open your mouth well, and imagine yourself addressing an actual audience.  A month’s regular practise of this exercise will convince you of its great value.

7.  STUDY SUCCESSFUL PUBLIC SPEAKERS

Hear the best public speakers available to you.  Observe them critically. 
Ask yourself such questions as these: 

1.  How does this speaker impress me?

2.  Does he proceed in the most effective manner possible?

3.  Does he convince me of the truth of his statements?

4.  Does he persuade me to act as he wishes?

5.  What are the elements of success in this speaker?

As you faithfully apply these various suggestions, you will constantly improve in the art of public speaking, and so learn to wield this mighty power not simply for your personal gratification but for the inspiration and betterment of your fellow men.