Public speaking is one of the finest art one can learn.Actually, its an inborn quality in a person.One who interact with others or( can say) is very much socialized is more likely to inherit this trait as it helps in enhancing the scope of thinking, broaden the area of thinking and in short helps in sustaining a life full of practical experiences.
To speak up your mind in front of hundreds of people without hesitation and without having a single thought about the consequences of expressing ones mind- is the biggest asset of public speaking.It requires a lot of exposure, gut, attitude and courage to frankly speak whatever you want to and that too without thinking the reaction of the people who listen to your views.
Public speaking involves a great risk as it can also lead to severe criticism and opposition from a specific section of society.But the one who handles such situations is the one who can become a good speaker in front of thousand of people.