My presentation , I had to speak about Lifestyle of People of the Mekong river. I am not good at speaking English. In the class I very excited to present. I stood in right corner of projector and just speak about topic that remember so no eye contact with others. I tend to stammer when I do not have the exact answer framed in mind. Should pronounce them correctly and should not look a script all the time. Depends on the time left. If there is very little time left, it is more logical to rehearse i own presentation, to get acquainted with the contents he has put in it. If there is sufficient time, it always helps to learn a few important points one should keep in mind when speaking to an audience. Learning is a continuous process and practice makes a man perfect. So, go hand in hand. Just plan well in advance and give it your best.