The Communication Pie — 7 / 38 / 55

The words are 7% of the message. Everything else is how you said it. Most sellers think they're working on the wrong 7%.
A play from Stevenson Brooks · Glossary

The pie

Here's the pie chart I draw for every seller I coach. Three slices:

Slice Percent What it is
Words 7% The literal content — what the sentence would look like written down
Tonality 38% How you said it — speed, volume, pitch, warmth, bite
Body language 55% Your posture, face, hands, eyes, how you're holding yourself

Add the last two up: 93% of communication is how you said it, not what you said.

Most sellers spend all their practice time on the 7%. They obsess over the script — "what should I say when the customer objects? What words should I use on the opener? What's the right phrase for the follow-up?"

Meanwhile the 93% — the tonality and the body language — is running on autopilot, and that autopilot is controlled by whether they're tired, stressed, confident, intimidated, or eating a bad sandwich. They're winging the part that matters most, and drilling the part that matters least.


Industry terms this page covers

What you might call it What I call it
"Tone of voice" 38% of communication
"Presentation / presence" 55% — body language
"Scripts and talk tracks" The 7%
"Why did that land weird?" Tonality/body mismatch

Where the numbers come from — and why they feel right

The specific 7/38/55 breakdown traces to Albert Mehrabian's research from the 1960s. There's some debate about whether those exact percentages apply to every situation — they shouldn't be taken as a hard law. But the direction is undeniably correct, and I'll tell you why:

"When we're born, we don't speak the language. We don't understand English. We don't even know our name. But we pay attention. We watch mom and dad fighting and we don't know what they're saying, but we hear the tone. We watch them smiling at us, and we start picking up the vibes."

We learned to read tonality and body language before we learned words. Those channels are literally older in our brain. They're running in the background whether you're paying attention to them or not, and the other person is reading them whether they're paying attention or not.

Every fight I've ever had with a woman in my life ends with the same line: "Steve, it's not what you said, it's how you said it." That's the 93% talking. She's not wrong.


What tonality actually is

Tonality is not just "being nice" or "being enthusiastic." It's a bundle of micro-properties:

All of those combine into what the listener hears. The same seven words — "yeah, we could probably do that" — can mean ten completely different things depending on the tonality:

The customer is reading all of that. You are broadcasting it whether you know it or not.

The practice of tonality is the acting job:

"I make sure I practice my acting voice so that my voice is matching what I'm trying to say. If I've got some bad news, I'm like, 'oh Francisco, listen man, I hate this — Friday, all I've got is 11:30. Would that work?' Now the tonality matches the message. It feels warmer."

Versus the flat version: "Yeah, Friday, all I got is 11:30." Same words. Zero warmth. Feels prickly. The customer registers that.

Professional communicators are acting — not fake, just deliberately matching the tone to the message instead of letting whatever mood they're in leak through.


Body language on the phone?

"Wait, Steve — 55% is body language, but most of my sales work is on the phone. So body language doesn't matter?"

Wrong. Body language still affects your tonality — which the customer can absolutely hear over the phone.

"If I answer the phone like, 'dispatch, can I help you?' — it's hard for me to be energetic because I'm already slumped. You'll notice I stand up when I train. And when I talk on the phone, I'm missing some stuff, so the tone goes up to 87% and the words are just 13%."

On the phone, you effectively lose the 55% visual channel — so the remaining budget redistributes. Tonality becomes maybe 85%, words maybe 15%. And tonality is controlled by body language. A slumped person sounds slumped. A standing, smiling person sounds warm and energized. That's why professional phone salespeople stand up and smile while they dial — the body is driving the voice.

The rule: if you want a certain tonality, put your body in the posture that produces it. Don't try to fake warm tonality from a slumped chair with a frown. The body betrays you.


Email — the danger zone

Now consider the worst medium for communication:

Email.

In email, you lose the 55% (body language) AND the 38% (tonality). All that's left is the 7% — the words alone.

That means any email you write is being interpreted by the reader using only 7% of the normal cues. They're filling in the other 93% with their own assumptions — assumptions usually based on whatever mood they're in and whatever their prior experience with you primed them to read into your words.

Which is why "thanks for your quick response" can read as warm to one person and sarcastic to another. The text is identical. The reader is generating the tone, not you.

Practical rules for email-as-a-sales-medium:

  1. Use warming words you wouldn't normally need in person. "Really appreciate you taking the time," "no rush on this," "hope all's well with the family" — stuff you'd communicate with tonality in person needs to be written out in email, or it's missing.
  2. Avoid bite / sarcasm / anything clever. In person your smile would carry it. In email it reads as an insult.
  3. When things matter, don't email. Pick up the phone. Or go in person. Get the 93% back.

Sellers who operate primarily by email are broadcasting at 7% signal strength and wondering why the relationship feels thin. You cannot build a partnership on email alone. The medium doesn't carry enough of what makes humans trust each other.


The match test — words, tonality, body all agreeing

The real power of the pie isn't just knowing the percentages. It's noticing when the three slices don't agree — and catching yourself before you broadcast a mixed message.

Scenarios where the three disagree:

The customer's brain picks up on the mismatch immediately — usually below conscious awareness — and registers you as inauthentic. Not lying. Just off. And "off" is enough to lose a deal or stall a relationship, even when the words were technically correct.

The practice: check that your three slices are telling the same story. If you're saying warm things, your body and voice have to be warm too. If you can't make them all match — either the message is wrong, or you need to change your state before you deliver it. Don't broadcast a mixed signal.


How this connects to Clark Kent

Clark Kent posture is a communication-pie move. Superman's words might be humble — "oh, I'm just learning, could you help me?" — but if his body is tall, his eyes intense, his voice crisp and loaded with certainty, the customer reads the 93% and goes "this guy is not actually lost." The mismatch blows the posture.

Real Clark Kent is matching all three: humble words, relaxed body, slightly softer voice, slightly uncertain cadence. Then the posture lands. The customer's threat system doesn't trigger. The conversation stays open.

"I stand a little further back than feels right. I soften my shoulders. Nothing that reads 'salesperson.' My hands are empty."

That's body-language tuning in service of the posture. Words alone couldn't carry it.


Homework — the three-slice check

This week:

  1. Record yourself on two customer calls (with permission, or for practice with a colleague). Listen back once without watching yourself. Just the tonality.
  2. Score each call on all three slices: - Words — was the content clear and appropriate? - Tonality — speed, warmth, confidence. Did it match the words? - Body language — even on the phone, how were you sitting? Standing? Did the body produce the tonality you wanted?
  3. Identify the weakest slice of the three across both calls. That's what you drill next week.
  4. Before each call next week, take 30 seconds to set your body first — stand up, shoulders down, smile, warm breath. Then dial. Watch what changes.

Where to go next


Source: drawn from 13 explicit moments plus dozens more on tonality and body language specifically across the live-coaching corpus — including the 7/38/55 pie, the babies-learn-tone-first origin, the acting-voice practice, and the email danger framing. Voice preserved.