Mastery

The key to being a good public speaker is simple: master your domain.

Take Nvidia CEO Jensen Huang doing his keynote for Computex this week.

Huang has been Nvidia's chief executive for over three decades, a tenure described by The Wall Street Journal as "almost unheard of in fast-moving Silicon Valley".

But don't need three decades tenure as one of the most successful companies in the world.

You need to own your topic.

When you’re deeply knowledgeable, your confidence becomes grounded, not forced.

You’re not just repeating rehearsed lines—you’re drawing from a well of real understanding.

That kind of mastery gives you presence.

It also leads to a memorable keynote or speech, regardless of preparation, venue or topic.