The difference between a boring presentation and an exciting one is the tone of voice used by the presenter. Never use a monotone. At various stages of your talk, your tone should go from slow to fast, loud to soft, humorous to serious and melancholic to joyful.
Try to use plenty of interesting and out-of-the ordinary examples throughout your presentation. A speaker once discussed the boring topic of aerodynamic equations by citing the example of the flight of a bumble bee. Examples like that can keep your audience’s attention focused on your presentation.
The difference between a presentation with variety and one without is like the difference between a rive and a canal. If you are floating down a river, it offers you different surprises at every bend. You may go from farmland to gorges to forest just by floating along a river. A canal, on the other hand, is a man-made ditch that is straight and not very interesting.
A good presentation is a river. A bad one is a canal.