How to Tell If Someone Is Lying

Savvy Psychologist Dr. Ellen Hendriksen reveals seven ways to tell if someone is lying

Join Our Community of Science Lovers!


According to eminent psychologist and emotion researcher Dr. Paul Ekman, lying comes in two flavors. First are “low stakes lies,” which almost all of us engage in; these are lies like, “Oh no, I never got your message,” or “So sorry I’ll be out today—it must have been something I ate.”

By contrast, “high stakes lies”—”I did not have sexual relations with that woman,” or “I’m not in love with David Patraeus"—are, thankfully, less common.  


On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


Either way, can you handle the truthiness?  Research says probably not: we’re terrible at detecting lies.  Even technology doesn’t improve our chances—a 2009 study in the Journal of Forensic Sciences examined a technique called voice stress analysis and found that it worked about as well as ... you guessed it: guessing.

And to make things worse, a 2014 study found that emotionally intelligent individuals (read: anyone who listens to psychology podcasts) are more easily duped by liars.  

That’s not to say we can’t improve our chances. While there is no single, silver bullet method to recognize deception, there are two different ways that lies leak from a liar like sweat on a brow. 

The first set of cues are physiological: gestures, facial expressions, or other ways liars wear their lie on their sleeve. In the following three examples, the key is to watch rather than listen.

»Continue reading on QuickAndDirtyTips.com

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American

Subscribe