How To Develop Good Communication Skill ?
Well this helped me, but I don't know if it'll help you. =/ What I did was start to read out in class when a teacher offers the class to read something aloud. You could also try to talk more than you usually do, or only focus on words, practice Pronouncing them, or something like that... that you have problems with.
tell your self that you are great you will start to feel great and it also reads in your body language..
look up toastmasters
Seriously... they do public speaking.
practice it with mirror ,wid frds and be confident