It helps if you practice in front of the mirror or in front of a pet. Get comfortable with what you are saying. People are usually nervous to speak in front of people because they don’t want to mess up. I am always like that. Also when it is time to do your speech just find someone you trust that is in your class and pretend you are reading to them. The class isn’t even there. Or if that doesn’t work just try to stare at the wall but make it a low spot so it looks like you are talking to your class. One tip: try to go first or second to get it over with. The longer you wait the harder it is to get up and do it. I hope this helps. Just be confident and you should be alright.