Reading the Room: Nonverbal Cues in Threat Assessment Interviews

When you’re in an interview, it’s easy to focus only on what the person is saying and forget that half the story is playing out in how they’re saying it. If you’re only listening to the words, it’s like hearing the soundtrack without watching the movie; you’re missing a lot of the plot. Nonverbal cues in threat assessment interviews matter. They can tell you when a topic lands hard, when someone is anxious, ashamed, overwhelmed, or just done with your questions. But they’re also incredibly easy to misread if we treat them as a secret codebook instead of what they really are: clues that need context and follow-up.

The starting point is always finding the baseline. Before you decide that someone’s behavior has meaning, you have to know what their “normal mode” looks like. Some people are naturally fidgety, avoid eye contact, or speak softly. Others are animated, intense, or flat. None of that is suspicious on its own; it’s just their style. The interesting moments are when something changes. A person who has been relaxed and open suddenly crosses their arms and leans back when you bring up a particular event. Someone who’s been talkative and easygoing goes quiet and guarded when you mention a certain name. A person who has been making comfortable eye contact starts looking down and away the moment you ask about a specific incident. Those shifts from baseline are where your curiosity should wake up.

But even then, nonverbal behavior does not hand you a verdict. It doesn’t announce, “This person is lying,” or “This person is dangerous.” It simply tells you that something is happening internally. Looking down and away might mean shame, sadness, anxiety, cultural norms, or that they’re replaying events in their mind. Folded arms might reflect defensiveness, feeling cold, or just a comfortable resting posture. If you immediately jump from “I saw this behavior” to “Therefore, I know exactly what it means,” you’re no longer doing assessment; you’re writing fiction.

The goal is to shift from assumptions to hypotheses. An assumption sounds like, “They broke eye contact when I asked about the incident, so they’re lying.” A hypothesis sounds more like, “When I asked about the incident, they looked down and got quieter. That might suggest discomfort, anxiety, shame, or avoidance. I should explore that.” One approach is rigid and convinced; the other is tentative and testable. Good interviewing is not about being right as fast as possible. It’s about being curious, systematic, and willing to be wrong on your way to getting it right.

This is where a good follow-up question becomes your secret weapon. Nonverbal cues become meaningful when you gently check them out with words. Instead of silently building a story in your head, you invite the person into the meaning-making process. You might say, “I noticed you got a bit quieter when we started talking about that class. What’s going through your mind right now?” Or, “When I asked about your roommate, you looked away for a moment. Was that a tough question?” Or, “It seems like this topic is bringing up some discomfort. Can you tell me what that’s about?” You’re not accusing them of anything; you’re simply naming what you see and opening a door for them to explain. Sometimes they’ll confirm your hunch. Sometimes they’ll completely disconfirm it. Either way, you’ve traded guesswork for information.

Context is where everything either comes together or falls apart. A single moment of looking away, fidgeting, or shutting down doesn’t exist in a vacuum. You must consider what you were talking about, whether this behavior is new or has been present the entire interview, what kind of environment you’re in, and what you know about the person’s history. Trauma, culture, neurodivergence, anxiety, depression, and personality all shape how nonverbal behavior shows up. The same cue can mean very different things in different contexts. A student who looks down, closes their eyes, and pauses when you ask about suicidal thoughts might be trying to put words to something painful, deciding how much to tell you, or bracing for your reaction. All three possibilities matter, and none can be confirmed by body language alone.

Nonverbal cues become especially powerful when you see them as part of a pattern rather than isolated events. You might notice repeated withdrawal or tension whenever certain topics arise, changes in voice or speech that coincide with posture shifts, or a mismatch between what someone says and how they look while saying it. A person insisting, “I’m fine,” in a flat voice with hunched shoulders and glassy eyes is telling a very different story with their body than with their words. Again, you don’t decide what this means in your head; you notice it, form a hypothesis, and explore it out loud.

If you boil it all down, a simple three-step process can guide you.

• First, watch. Pay attention to changes from the person’s baseline, shifts in posture, eye contact, tone, pace, gestures, and fidgeting.

• Second, wonder. Turn your internal reaction into a tentative hypothesis: “I’m wondering if they might be feeling ashamed, overwhelmed, scared, or guarded right now.”

• Third, ask. Use a gentle, curious follow-up question to test that hypothesis and let them tell you what’s actually going on.

Nonverbal behavior is incredibly useful, but only when we treat it as part of a larger picture rather than a magic truth detector. It’s the subtitles, not the whole movie. The only person who truly knows why someone looked down, shifted in their seat, or ran their tongue over their teeth is the person sitting in front of you. Your job is to notice, name it softly, and ask, not to assume, declare, and close the case in your head.