Many managers and directors believe great public speakers succeed simply because they’re charismatic.
They assume the secret is charm, energy, clever wording, and polished stage presence.
So then they go out and “perform” these things during their presentations, meetings, and proposals.
They load their presentations with fancy jargon.
They build complicated PowerPoint decks full of charts, pictures, and data that no one asked for.
They obsess over sounding intelligent instead of being clear.
The result?
The Problem
Their audiences are unimpressed, and they disengage.
They stop listening.
And when the presentation ends, nothing happens.
No action. No investment. No deal.
That’s a losing presentation that failed to accomplish its mission.
Why does this happen?
Because in serious business environments—especially when bigger decisions or higher-ticket deals are involved—people are not looking for a performer or for the best English-speaking person.
They’re looking for someone who knows what they’re talking about, who can provide a legitimate solution to their problems, and who can communicate this clearly.
Confidence in public speaking doesn’t come from charisma.
It comes from true conviction.
The Solution:
Conviction means you genuinely believe in what you’re saying because you understand the audience, their problem, your solution, and the relevant results your solution provides.
When that belief is real, your delivery naturally becomes stronger, calmer, and more persuasive.
This is exactly what I work on with my clients.
Instead of teaching them to “perform,” we focus on the fundamentals:
Clarity:
Your message must be simple and easy to understand.
If people struggle to follow your logic, they stop listening instantly.
You should be able to explain your ideas so clearly and simply that even a child could understand them (yes, children are much smarter than we often give them credit for!).
If a child cannot grasp your ideas, that means there’s still plenty of room to communicate your ideas in a clearer manner.
A strong UVP (Unique Value Proposition):
You must clearly explain what makes your idea, product, or strategy valuable.
What makes your idea or solution unique?
How does it differ from competitors (other than just price, which is often weak positioning)?
Why should your audience consider you instead of all their other options?
We shouldn’t assume our audience somehow, magically, just knows these things.
It’s on us to guide them to the right answers with a strong UVP.
Simplicity:
Cut the unnecessary slides, pictures, charts, and filler.
The more complex your presentation becomes, the more your message disappears.
Simple, clean, easy-to-read slides are far more effective.
Especially in business presentations, less is often more.
A clear CTA (call to action):
Your audience should know exactly what they should do next and why it benefits them.
The responsibility lies on you, the speaker, to guide the audience on how to apply the information you’ve shared with them during your presentation.
Never just blindly assume that your audience somehow already knows what to do.
The more clearly you guide them, the more likely they are to take action, especially when the CTA is clear, incentivizing, and simple.
When these elements are in place, something powerful happens:
Your audience genuinely begins to trust you.
They see that you understand the situation, you have a clear solution, and you’re confident enough not to hide behind flashy presentations.
And that’s what moves decisions.
Wrap Up:
Here’s the takeaway:
Stop chasing charisma.
Start building conviction.
Know your message. Simplify it. Communicate it clearly. Show your audience why it matters to them and what they should do next.
In high-stakes communications, authority doesn’t come from performance and putting on an act.
It comes from real belief backed by results.
See you next time.
Carlos
PS. If you’re a global life science manager or director who is trying to improve your business presentation skills in English, apply here for a free discovery call.