What is public speaking? Meaning, rhetoric and how to get better at it

Some people step in front of an audience and win everyone over. Others lose the room after two minutes. Both are doing the same thing: public speaking. What makes the difference is how they do it. And the good news is: speaking well in front of people is a skill you can learn.

In this article, I explain what public speaking means, what rhetoric has to do with it and how you can get better at it, in presentations, in meetings and on stage.

Public speaking: definition and meaning

Public speaking means speaking in front of an audience. That can be a team meeting with five colleagues or a conference with five hundred people. A pitch to investors, a speech at a wedding, a video for LinkedIn or an interview on TV. As soon as people are listening to you, you’re speaking in public.

Public speaking describes the situation. Whether you actually reach your audience is a different question. That’s where rhetoric comes in.

What does rhetoric have to do with it?

Rhetoric is the art of speaking effectively and persuasively. The word comes from Greek and means the art of speaking. Rhetoric is what turns speaking in front of people into speaking that makes something happen. It works on three levels:

• What you say: your message and your arguments.
• How you structure it: order, flow and dramatic arc.
• How you deliver it: language, voice, pauses, eye contact and body language.

You don’t need a stage to use it. Everyone uses rhetoric, every day, whether they realize it or not: in a sales conversation, a job interview, a team meeting or at a parents’ evening.

Where does it come from?

Rhetoric has its roots in antiquity. In ancient Greece, speaking in public was the most important way to win people over, in court and in the public assembly. Aristotle was the first to describe the art of speaking systematically. Later, Roman orators like Cicero and teachers like Quintilian developed it further.

For centuries, rhetoric was part of a basic education, at schools and universities alike. Today it’s everywhere: in politics and the media, in advertising and marketing, on stage, in videos and podcasts. The formats have changed. The foundations haven’t.

Ethos, pathos and logos: the three pillars of persuasion

Aristotle described three ways a speaker persuades, often called the rhetorical triangle:

1. Ethos, credibility: your audience has to trust you. Competence, experience and authenticity build that trust. People listen to those they find credible.
2. Pathos, emotion: a talk has to move people. Stories, images and examples create feelings, and feelings stay with us longer than facts.
3. Logos, logic: your arguments have to hold up. A clear structure, evidence and numbers convince the mind.

You persuade when all three work together. Logos alone feels dry, pathos alone feels manipulative, ethos alone feels empty. In my coaching sessions, I often see people relying almost entirely on logos: slides full of numbers, but no story and nothing personal.

Rhetorical devices you can use right away

Rhetorical devices are tools that make your content vivid and memorable. The most useful ones for presentations and speeches:

• Metaphor and comparison: they make the abstract tangible. “Our sales team is an engine running at half power.”
• Repetition: what you say more than once sticks. Especially your key message.
• The rhetorical question: it gets your audience thinking without needing an answer.
• The rule of three: three points feel complete and are easy to remember.
• Contrast: before and after, problem and solution. Opposites create tension.
• Storytelling: a short story with a person and a turning point stays with people longer than any statistic.

Public speaking with or without slides

A presentation is one form of public speaking, often with slides in PowerPoint or Prezi. Slides can support you, but they can’t replace you.

• In a speech without slides, such as an address or a keynote, your words and your delivery are everything.
• In a presentation with slides, both have to work together: a clear message, a structure that takes people with you, and slides that support rather than distract.
• In technical talks and training sessions, good slides help make complex topics understandable. Without a clear message and a confident delivery, though, even the best slide loses its impact.

If you want to work not just on your delivery but also on your slides: that’s what we do at my presentation design agency MCPREZI.

Where public speaking matters in everyday life

• At work: in presentations, pitches, negotiations and job interviews.
• In leadership: if you need to explain decisions and bring people along, you need to speak well. More on speaking as a leader.
• On camera: in videos, interviews and on LinkedIn, how you speak matters even more, because every gesture is visible.
• On personal occasions: at a wedding, in a club or in your community.

Can you learn public speaking?

Yes. Speaking well in front of people isn’t a talent you either have or don’t. It’s a craft. Almost every good speaker learned it through practice. Three things help most:

1. Structure before wording. First define your goal and your key message, then your structure. Only then polish individual sentences.
2. Practice out loud. Every speech sounds good in your head. Only out loud do you notice where it stumbles.
3. Honest feedback. Record yourself or get feedback from someone who’ll be honest with you. You’ll see immediately what works and what doesn’t.

In my book “3, 2, 1… Reden ist jetzt Deins”, I describe the House of Speaking method for exactly this: from the foundation, your mindset, through planning and design all the way to delivery. And if you want to make faster progress, we work directly on your next real presentation in public speaking coaching.

Bottom line

Public speaking means speaking in front of people. Rhetoric is what makes it work. It brings together a clear message, a well-thought-out structure and a delivery that suits you. Its foundations are more than 2,000 years old, and they matter more than ever today: if you can win people over when you speak, you stand out. The best part: you can learn it.