You can learn a lot simply by observing how successful public speakers “work the room” and engage their audience in videos. Observe what they do. How do they use their voice as a tool of communication? How do they deploy tone, pausing, pacing, and projection? What do they do with their hands? How do they make use of the physical space around them? Take note of how speakers physically operate, either in person or on media: identify what they do, make note of what you think works well and what doesn’t, then put what you’ve learned into practice.

As a student, you might start by observing your professors. Aim to identify what makes one professor a great lecturer and another less engaging. Compare what they do with their voice, their hands, their gestures, their movements. Pay attention to how they pace their talk to draw you in and create emphasis. Reflect on what they do to convey a sense of enthusiasm for what they’re talking about—or fail to do so. You want to know what kinds of things to avoid—a dull monotonous tone, for example—as well as what kinds of things to adopt to ensure your voice comes across as a powerful tool for communicating your ideas clearly and emphatically.