Being a human we are liable to make a mistake. Even in public
speaking, many people do commit mistakes such as using foghorns like aahhh,
uummmm etc. These mistakes are such pitty ones that they may be ignored by
the audience to some extent. But some people in public speaking commit blunder
for which the audience is not able to forgive. And this would make your public
speaking go into drains.
There may be instances where a professional, a businessman may end
up boring his audience for 20-25min whereas a layman might have the capability
to bring rejoice in the audience. This is all because he has understood
the essentials of public speaking well.
The most common misdeeds done by people in public speaking and