Making presentation is not simple. It is extremely important for us to realize the sanctity of rehearsing to improve the quality of the presentation. Unless and until you have rehearsed adequately you should not venture forth to make a presentation. The more you rehearse the better is your performance in front of an audience. In the initial phases rehearsals important to do a ways with the element of fear. In the later stages it helps in brushing up the style of presenting and reveals your self confidence. If this art is perfected it can lead to acclaim and recognition if not it will reveal the speaker in a poor light. So it is required that one work hard for positive results. The more you delay the worse does the situation gets for you to work on and improve.