What can indicate that someone is experiencing nervousness before a presentation?

Choosing heart pounding as an indication of nervousness before a presentation is accurate because physiological responses often manifest when someone is anxious or stressed. When individuals feel nervous, their body can react in various ways, such as an increased heart rate, sweating, or even shaking. This response is part of the body's natural fight-or-flight mechanism, which gets triggered when faced with potentially high-stakes situations like public speaking.

In contrast, strong eye contact and sound clarity typically reflect confidence and control during a presentation, suggesting that someone is comfortable rather than nervous. A calm demeanor is also an indicator of comfort and self-assuredness, which would not align with the experience of nervousness.