After finishing the slides, then you should prepare yourself to use each slide and each point in the slide to make your presentation run smooth. This is the other half of the key success of delivering your best PowerPoint presentations. If you are a new presenter or if it is your first time using a PowerPoint presentation, you should help yourself by writing the script of your presentation. It is just the same as the script that an actor given by the director.
Similarly, the script for your presentation includes all of the sentences that you are going to say from the beginning till the end of the presentation. You have to give yourself time to memorize the script and to rehearse using the slides in delivering the presentation. Start by operating the slide show from the first slide. At the first time, you can read the script. Later on you should be able to finish the presentation from the beginning till the end without reading the script. Just use the phrases that you have put in the slides to give you a sign of what to explain next.
The rehearsal session will help you build your confidence because you are certain that your slides and your materials are excellent, and that you master the whole materials both in the reference books and in your slides. Other things that you have to do in order to give the best PowerPoint presentations are choosing the most appropriate clothes, managing your time, and maximizing the use of your gestures and the intonations of your voice, as well the skill of giving eye contact to the audience.