Rule 1 · Reading People
Watch the Hands, Not the Face
From the blockA young officer I trained once stood in a doorway talking to an inmate who was smiling and nodding and agreeing with everything. The kid was watching the smile. I was watching the inmate's right hand, which kept drifting to his waistband and back. We searched him. He had a sharpened toothbrush in there. He'd smiled the whole time.
A face can lie for as long as it wants. Hands are harder to control. When a person is planning to do something, the hands usually get there first. At your front door: can you see both of the stranger's hands? If one stays out of sight, keep the chain on.
Say this instead"Could you step back a little so I can see you better?" Works at the door, the car window, or anywhere a stranger is too close. You don't need to explain why.
Where this rule stops workingHands in pockets on a cold day mean cold hands. Treat a hidden hand as a reason to keep your distance, not as proof of anything.
Rule 10 · Lies and Manipulation
Urgency Is the Liar's Best Friend
From the blockBefore every escape attempt or big fight I ever saw, there was a rush. Men moving fast, talking fast, trying to get officers to decide quickly. "Open the gate, he's having a seizure!" When somebody needs you to act right now, that's exactly when you slow down and look again.
A liar's biggest enemy is time. Given time, you'll call your son, look up the real number, notice the email is wrong. So every scam is built to take your time away. Real institutions are slow. Courts send letters. Banks wait while you call back.
Say this instead"I don't make decisions on the phone. Give me your name and I'll call back through the main number." Then hang up and look up the number yourself.
Where this rule stops workingFire and medical emergencies need fast action: call 911. The rule is about money, information and access. Anyone who wants those right now can wait.
Rule 16 · De-escalation
Words That Pour Gasoline
From the blockWe kept a list on the wall of the officers' break room, written by a sergeant with thirty years on the job: "Words that start riots." At the top was "Calm down." Second was "Because I said so." I copied it into my notebook and kept it my whole career.
Gasoline words tell an angry person they're wrong to feel what they feel. The replacements tell them you see it, without agreeing with everything.
Say this instead"Calm down" becomes "I can see this really matters to you." "What's your problem?" becomes "What's going on?" "You need to..." becomes "Would you be willing to...?"
Where this rule stops workingSometimes a person has decided to be angry no matter what you say. Use the words, give it a fair try, then walk away (Rule 17).