Public speaking

During the class of English Communication II, three students were picked randomly for public speaking. Each of them was required to speak impromptu for about 2 minutes. They shared a same topic which is human interest. Miss Fairus commented after each of them finished speaking. Some of the speakers' problems were speaking too fast, unclear pronunciation and being too nervous. I think I would have the same problems too. Worst is blackout will happen once I panic! Hope I will be able to cope this when it is my turn to speak.