Your job as a presenter is to engage your audience, to pull them
forward in their seats. Unfortunately, audiences can be easily
distracted, and they habituate quickly. To counter these natural
tendencies, you must diversify your material to keep people’s
attention, with variation in your voice, variation in your evidence,
and variation in your visuals. You have likely been the victim of a
monotonous speaker who drones on in a flat vocal style, like Ben
Stein’s character in Ferris Bueller’s Day Off. Vary your volume and
speaking rate to help keep your audience’s attention and motivate
them to listen. And by speaking expressively, your passion for your
topic comes through. However, for many presenters, especially
those newer to English, this type of speaking is not natural. I often
instruct less expressive speakers to infuse their presentations with
emotive words, such as “excited,” “valuable,” and “challenging,“
and to inflect their voice to reflect the meaning of these words. If
you are speaking about a big opportunity, then speak “big” in a big
way. With practice, you will feel more comfortable with this type of
vocal variety.
Varying the type of evidence you use to support the claims in your
presentation is equally important. Too often, presenters exclusively
use their favorite type of evidence. You might over-rely on data or
on anecdotes. But both qualitative and quantitative academic
research have found that when you triangulate your support you
provide more compelling and memorable results. So, try providing
three different types of evidence, such as a data point, a
testimonial, and an anecdote. This triangulation neatly reinforces
your point, and it allows your audience multiple opportunities to
connect with your idea and remember it, which is why it’s a
technique often used by advertisers to reinforce that you should buy
their product.
By varying your voice and evidence, you will make the words you
speak more memorable. But what your audience sees is also critical.
Just as a monotonous speaker can cause mental shutdown in an
audience, repetitive body movements, and slides jammed with
words can fatigue and distract an audience. People are very poor
multitaskers. When distracted by spurious gestures or a wall of bullet