1How to Spot a One

• They speak matter-of-factly and precisely, often using words like “should,” “properly,” or “right.”
• They notice mistakes and loose ends, even small ones, and find it hard to let them go.
• Their body language gives away disagreement: a clenched jaw, a frown, a brief pause.
• They complain about carelessness, unfairness, and people who don't take their responsibilities seriously.
• They react sensitively to criticism and immediately explain their approach.
• They find it hard to rest; even their free time tends to be useful, like cleaning, repairs, or volunteering.

People most often confuse a One with a Six (both are conscientious and follow the rules), a Three (both are hardworking and productive), or a Five (a social One tends to be reserved and rational). But people of many different strategies are meticulous and prone to criticism, each for a different reason. What matters is what drives the person: for a One it's an inner standard of rightness, not fear or a desire for recognition. You can't see that motive from the outside, which is why the final word always belongs to the person themselves.

• Be precise and reliable, and keep your promises.
• Give criticism specifically and matter-of-factly, and start with what went well.
• Praise sincerely and for specific things; they'll see through empty compliments.
• Help them allow themselves to rest without guilt.