I agree that public speaking can be a daunting task in any project, but I tend to agree with Joey and Sergiy on this topic. The more you expose yourself to public speaking, the easier it is to do. The trick is doing it more frequently. Whether it is giving actual presentations or speaking up in class, they all contribute to your public speaking ability. Like Sergiy I have to speak to coworkers everyday, but the more I do it, the more it becomes second nature. I don't even realize sometimes that I am giving a presentation anymore. Audience does play into this, if you are familiar with the group you are talking to, it makes it much easier. But even stranger anxiety can be overcome with enough practice. I have found that practicing ahead of time helps immensely, even if I am just presenting to a mirror with myself and stopwatch. Just following the steps of presenting information in a specific order with a time frame in mind will do wonders, and always allow a few extra minutes for questions and interruptions.