You can guess someone’s colour in the first ten minutes by watching four things: how they open a meeting, how they answer a question, what they do with silence, and how they react when the plan changes. Every guess stays a guess. The point of how to read people at work is not to label a person, it is to pick a format for the next message you send them.
The four signals on one page
Watch the first four moments of any meeting and take a note on each. By the end of the call you have four data points rather than an impression, and if three of them point the same way, you can prepare the follow-up message for that colour. If they disagree, wait for the next meeting.
The table scrolls sideways on a phone.
| Signal | Red | Yellow | Green | Blue |
|---|---|---|---|---|
| Opening a meeting | Asks what we are deciding today | Starts with a story or a joke | Greets people by name, checks who is missing | Asks whether the agenda and documents went out |
| Answering a question | Gives the answer, then the reason if pushed | Answers sideways, adds a second story | Asks what the others think first | Corrects the question before answering it |
| What silence does | Fills it with a decision | Fills it with talk | Lets it sit, then agrees with the room | Uses it to read the document again |
| A change of plan | Asks who authorised it | Asks what the new plan could become | Asks what happens to the people affected | Asks what breaks and what gets reworked |
How they open a meeting
The first ninety seconds tell you where someone’s attention sits. A red spends them on the decision, because the meeting has one job and the rest is noise. A yellow spends them on the room, because a warm room decides faster than a cold one in their experience.
A green opens by checking people. Who has joined, who is quiet, who was unwell last week. That is not small talk to them, it is how they decide whether the room is safe enough for an honest answer. A blue opens by asking what was circulated, and if a document is missing they will say so before anything else happens.
How they answer a question
Ask one question you already know the answer to, and listen to the shape of the reply. Red answers in a sentence and waits. Blue reframes the question first, because a badly worded question produces a wrong answer and that is worse than a slow one.
Yellow answers around the question and arrives at it, and the story is where their thinking happens. Green looks for the safe answer, which often means asking the group first. None of these are evasions. Each one is a person protecting the thing they think matters.
What they do with silence
Silence is the cheapest test in the room. Leave a pause of four seconds after someone finishes and watch who moves first. Red breaks it with a decision, because an unresolved silence feels like a risk. Yellow breaks it with words, because silence feels like the conversation dying.
Green lets the pause stay and checks whether anyone has been hurt. Blue uses it to finish reading. If you want one honest answer from a quiet room, ask your question and then say nothing for a full five seconds. The person who has been waiting to speak usually fills it.
How they react to a change of plan
Change is where the colours separate fastest. Move a deadline forward and red asks who signed off on it, which is a question about authority rather than the work. Blue asks what breaks, because a shifted deadline moves a dependency somewhere and they want the map.
Green asks about the people who had arranged their week around the old plan. Yellow asks what the new plan makes possible, and by evening they may have sold the change to the client before you have written it down.
Three things that will fool you
- Hierarchy. A junior colleague in a room with a director will look green, because silence is the safe move in an Indian office and not a personality. Judge people in a room where they have standing, or ask them one to one.
- Stress. A person under a bad month will look like their worst colour and not their usual one. One performance review is not a pattern.
- Your own colour. A red reads a slow answer as disinterest. A blue reads a fast answer as careless. Half of what you notice in the first ten minutes is your own preference doing the noticing.
A ten-minute checklist I use
- Minute one: note who speaks first and what the first sentence is about.
- Minute three: ask a question with a known answer and note the shape of the reply.
- Minute six: leave one long pause and note who fills it.
- Minute nine: mention a small change and note what the first question is.
- Minute ten: write one line in your notes before you form an opinion.
That is the whole method, and it fits in a notebook margin. If three signals point the same way, send the follow-up in that colour’s format and see what happens. The four colours explained page has the full description of each type, and the summary of Surrounded by Idiots explains why the model leans on four patterns in the first place. My own mistakes are in the seven things I changed.
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