2. Make sure that you contribute and offer your response to the conversation. By doing this you will in time gain confidence to start conversation topics with strangers, not just with those you are familiar with. 3. Preparation is the key! One of the qualities that make a great public speaker is the simple yet effective ability to be listened to While alone stand in front of the mirror, practice speaking, stand straight and tall, and talk at a good volume (not shouting). 4. An assertive voice of authority will help to draw people to listen to you. In fact they won't have the choice not to!