You want to know if someone's lying to you?

Psychologists warn that physical signs such as nose scratching, ear touching, or avoiding eye contact are unreliable indicators of whether someone is lying. Instead, more useful clues can be found in the words people use and how they answer questions, according to experts. This insight comes from research published in Science Focus, which highlights the limitations of relying on body language to detect deception. The common belief that liars blink more frequently, avoid eye contact, touch their face, or fidget has been challenged by psychologists who emphasize that these behaviors are not reliable markers of dishonesty. In fact, studies suggest that individuals who lie often try to appear calm and composed to seem more credible. This means that physical cues might not always reflect internal states accurately. Maintaining a lie is far from simple, according to psychological research. Experts explain that skilled liars often keep their stories straightforward. However, sustaining a falsehood requires considerable cognitive effort. A fabricated statement may necessitate additional statements, creating a web of details that must be remembered and adjusted based on new questions. The brain must work hard to suppress the truth while constructing and maintaining a false narrative. Dr. Sharon Leal, a psychologist from the University of Portsmouth, explains that when someone tells a significant lie, they usually rehearse it beforehand. They think through what was said so they can repeat the story if questioned again. While lying, individuals must monitor their behavior, avoid appearing nervous, and attempt to maintain direct eye contact with the listener. At the same time, they observe the listener's reaction to gauge whether they believe the story. Research using magnetic resonance imaging shows that the truth initially appears in the brain before being suppressed to allow the person to tell a lie. This process further taxes cognitive abilities, yet these mental efforts are not always visible through physical signs. Leal suggests changing the approach to detecting lies. She argues that verbal detection is significantly better than nonverbal methods, even though much attention is given to nonverbal cues. Simple actions like nose scratching, fidgeting, blinking, or avoiding eye contact are not reliable indicators of deception. Studies show that people who lie sometimes become calmer and less physically active to appear more convincing. More useful clues are found in what a person says and how they say it. Psychologists studying deception recommend focusing on the content of the statements rather than nonverbal signals. One technique involves asking strategic questions that encourage the person to reveal inconsistencies in their story. For example, investigators use a method known as the strategic use of evidence. They ask questions about a specific event but withhold information they already possess. Someone telling the truth will often provide details freely, whereas a liar may claim they weren't present, avoid specific details, or steer the conversation elsewhere. It is also helpful to ask the person to provide information that could verify their account. Studies indicate that people who tell the truth are more likely to spontaneously mention details that confirm their story, such as other people present at the event. Liars are less inclined to offer independently verifiable information. Another effective technique is asking the person to recount the story multiple times. Research shows that individuals who tell the truth often add new details upon retelling the story. Liars, however, tend to stick to a simple version of events. The fewer new details they add, the less likely they are to get tangled in their fabrications. Experts also highlight the importance of asking open-ended questions that require detailed responses. These types of questions can help uncover discrepancies in a person’s account. Additionally, encouraging the individual to describe the sequence of events in detail can reveal inconsistencies or gaps in their story. Psychologists stress that understanding the complexities of lying goes beyond observing physical cues. Focusing on the structure and content of a person’s statements provides a more accurate assessment of their honesty. By employing these techniques, individuals can better identify potential deceptions and gain deeper insights into the reliability of others' accounts.