You know that feeling when you’re sitting across from someone and something just feels off? Maybe they’re explaining why your project deadline got pushed back, or why they couldn’t make it to your birthday dinner, and your gut is practically screaming that their story doesn’t add up. But you can’t put your finger on exactly what’s wrong. This happened to me with an ex-roommate who swore up and down they weren’t eating my leftovers. Meanwhile, they literally had sriracha sauce on their shirt while denying they’d touched my Thai food. That’s when things started clicking about the subtle signs people give off when they’re not being straight with you. These aren’t about becoming some paranoid lie detector or turning every conversation into an interrogation. Your subconscious is already picking up on inconsistencies, you just need to know what to look for. After years of managing teams and dealing with everything from “the email must have gone to spam” to creative explanations about missed deadlines, these patterns become pretty clear once you know what you’re watching for. Reading Their Normal First Most people jump straight into looking for “lying signs” without understanding how that person normally behaves. This is where everything falls apart before you even start. You can’t spot unusual behavior if you don’t know what usual looks like for them. Everyone has their own normal patterns, and what looks suspicious in one person might be completely standard for another. Sarah, a friend of mine, naturally talks with her hands constantly and touches her face while thinking. All those “classic” lying tells would be meaningless with her because that’s just how she processes information. The trick is starting with completely neutral conversation first. Ask them about their weekend, their favorite coffee shop, or what they thought about that new restaurant downtown. Something with zero stakes where they have no reason to lie. While they’re talking, really pay attention to how they normally move their hands, make eye contact, position their body, use filler words, and pace their speech. There’s this coworker who always looks up and to the right when she’s thinking through something. The first few times, that seemed like a red flag based on everything you hear about eye movement and deception. But after watching her in regular meetings, that’s just her processing mode. She does the same thing when trying to remember where she parked her car or what she had for lunch yesterday. You need at least five to ten minutes of normal conversation before bringing up anything potentially sensitive. This baseline reading has saved me from so many wrong assumptions. The patterns you establish in those first few minutes become your reference point for everything that follows. The Voice Tells That Actually Matter Forget everything you’ve heard about voices getting higher when people lie. That’s not reliable in real conversations. The vocal changes that actually show up consistently are much more subtle and specific to how each person normally communicates. Pace Changes That Give It Away When people lie, their speaking rhythm shifts in noticeable ways. They either speed up because they’re rushing to get through the uncomfortable part, or they slow way down because they’re buying time to construct their story carefully. My neighbor once explained why my packages kept getting “lost” from our building’s mailroom. Suddenly she was talking at half her normal speed, like she was reading from a script she’d never seen before. Every word was measured and deliberate in a way that felt completely unnatural for someone who usually chatted quickly about everything. Filler Word Explosions Everyone uses filler words, but liars often lean on them much more heavily than usual. This isn’t just “um” and “uh” either. People have their own personal favorites that multiply when they’re being dishonest. My brother says “you know” about ten times more when he’s making something up. Others go heavy on “like,” “I mean,” or “actually.” The key is knowing their baseline. Someone who never uses filler words suddenly peppering their speech with them is just as telling as someone who normally uses them moderately going completely overboard. The Weird Precision Thing When people lie about timing or specific details, they often get oddly precise about things that don’t really matter. Instead of saying “around 3:45” or “quarter to four,” they’ll say “I left at exactly 3:47 PM.” It’s like they think extra details make the story more believable, but the precision feels forced and unnatural. This shows up in expense reports, explanations for being late, and alibis. The details that get the most specific attention are usually the ones that matter least to the actual story, while the important parts stay vague. Volume Inconsistencies People don’t necessarily get quieter when they lie. Sometimes they get louder to seem more convincing, or their volume fluctuates weirdly throughout the story. You’ll notice them emphasizing certain parts that don’t seem to warrant emphasis, or dropping their voice at moments that should be more emphatic. Customer service calls are great for practicing this. You can hear these patterns so clearly when someone’s reading from a script versus genuinely trying to help solve your problem. The key is combining voice changes with their established baseline, not just listening for one specific tell. Body Language Beyond the Obvious Skip the “they touched their nose so they must be lying” approach. Those surface-level tells are too unreliable and vary too much between people. The body language patterns that actually repeat across different situations are more about overall comfort and consistency. Comfort Zone Disruption Everyone has a natural comfort bubble and way of positioning themselves in space. Liars often disrupt their own comfort zone without realizing it. They might suddenly sit much closer or farther away than usual, or completely change their normal posture. One team member always sat forward during meetings, engaged and leaning in. But when we discussed missed deadlines, she suddenly started leaning way back in her chair, almost like she was trying to put physical