There is nothing more boring than a speaker who stands in one place and never moves his arms and speaks softly just putting out the information of the talk. So to avoid this curse, learn not only to communicate with your entire being when you are in front of an audience. Learn to express yourself with facial expressions, with gestures of your arms and with movement. Because that extra effort is what can make a fair presentation good or a good presentation a great one.
A good public presentation can be compared to eating a meal in a restaurant. A good chef knows that there is more to fine dining than just food because you also must have good service and ambiance so the presentation of the food makes the meal delightful to eat. The same is true of a public speaking situation. It isn't enough just to stand up there and speak out the information. You are not just speaking because you are only really successful when you are communicating. And to communicate, your audience has to grasp what you are saying and be prepared to make it real in their own lives.