When you appear before an audience speak to the persons at the further end of the hall and if they can hear you don't worry about anyone else.

Later, when I had become fairly launched as a public speaker, he came to visit me, and when I appeared on my platform that night I found scattered around on the floor, where none could see them but myself, several placards upon which he had printed in easily-read capitals: Don't shout--keep cool.
Avoid ranting.

Make each point clear.

Don't ramble, etc.
When I was about fourteen I took up phonography, or stenography as it is now known.

This was an aid in reporting speeches, making notes, etc., but one of its greatest helps was in the matter of analysing the sounds of words thus aiding me in their clear enunciation.
At this time I was also a Sunday school teacher, and at sixteen years of age, a local preacher in the Methodist church.