why are some people afraid of public speaking?

Why are some people afraid of public speaking? How do you overcome that fear?

Your need self confidence, many think when ever they speak in public people laugh at them, the believe they are not speaking right thing,you are to know practice makes perfect, if you’re not exposing yourself, you fine it difficult to speak, when would you know if you are right or not, if you are the type, don’t be the first to speak in the public try to listen to other first , my classmate back home in my primary school who who always teach me but anytime the class teacher came in and teach, and asked a question she refused to answer, only said to me say it this way, immediately I said what she told a later fine out that’s right for the answer, because she a shame for people know to mock at her, but if you don’t speak in the public or people don’t laugh at you how can you learn from your mistake how do you know if you are right or not ,

sometime you being the first to tell yourself the true bout your life , speak when other talk, bring out your opinion let know one remain you is your turn to speak , try to feature yourself in one organization if possible take a position , to lead be active to your society , do not believe by talking in many hours is the best, let your action speak more than your voice,