

This is a podcast aimed at better understanding other people and better understanding ourselves.
I’m Zachary Elwood. On this podcast, I talk to people from a wide range of professions and backgrounds about behavior and psychology.
Ready to jump in? Here are some popular episode compilations:
- Crime & investigation-related
- Politics-related
- Mental health-related
- Sports & games-related
- Behavior bullshit
Here are some of my my favorites.

Talks about reading and understanding human behavior with a diverse range of people, including: law enforcement professionals, poker players, jury consultants, behavior researchers, sports analysts, political researchers, and many more. There are more than 200 episodes. To learn more, see transcripts, and sign up to get updates, go to www.behavior-podcast.com.
Many people think police interrogations often involve reading body language and catching “tells” of deception. Interrogation trainer Mark Anderson explains how much of what’s taught about using nonverbal behavior in high-stakes interviews is based on myth, not science—and how a faulty focus on “reading people” can actually damage interviews. We dig into why stress behaviors don’t signal guilt, how confirmation bias warps investigations, and why “reading people” is far less useful than most believe. Instead, Mark lays out what actually works: deep listening, better questioning, managing conversations, and building real rapport—even with people who’ve done serious harm. Along the way, he shares stories from his career that show how empathy and curiosity can unlock information in surprising ways. If you’re interested in psychology, communication, or the reality behind interrogations, this episode might challenge some of your basic assumptions.
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Popular Episodes
- About this podcast: why I do it and why I think it’s important
- Questioning if body language is useful for detecting lies, with Tim Levine
- Reading and predicting jury behavior, with Christina Marinakis
- How to spot fake online reviews, with Olu Popoola
- Persuasion in polarized environments, with Matthew Hornsey
- Relationship “tells”, with Brandi Fink
- Cryptocurrency, problem gambling, and addiction, with Paul Delfabbro
- Reading poker tells, with poker pro Dara O’Kearney
- Why do so many people “want to watch the world burn”?, with Kevin Arceneaux
- Understanding and coping with anxiety, with editor of The Atlantic Scott Stossel
About me
I’m most known for my work on poker tells (aka, poker behavior). My first poker tells book, Reading Poker Tells, has been translated into eight languages. I’m also known for my work on political polarization (for example, my book Defusing American Anger). My independent research on deceptive online activity has been featured in NY Times, Washington Post, Buzzfeed, and more.
Like the show?
If you enjoy this podcast, please share it with others, and/or write me a review on Apple Podcasts. If you want to support my work, get a premium podcast subscription, or sign up for my depolarization-aimed Substack newsletter. Other ways to show appreciation: subscribe to this podcast on YouTube or Apple or Spotify (or wherever). You can also sign up below to get updates.