#1 Communication Expert: "Speak Like THIS & It Will Transform Your Relationships!" | Leslie John
Harvard Business School professor Leslie John discusses the underrated power of oversharing, arguing that most people undershare rather than overshare in relationships, leading to slow emotional distancing. She explains concepts like mind-reading expectations, disclosure decisions, and emotional intelligence, drawing on both her research and personal experiences including divorce and a decade-long unspoken resentment toward her mother.
Summary
Leslie John, a Harvard Business School professor and researcher, joins the School of Greatness to discuss her book on the underrated power of oversharing. She opens by challenging the common fear of TMI (too much information), arguing that the far more pervasive problem in relationships is TLI — too little information. She explains that long-term relationships typically don't fall apart from dramatic events like affairs, but from slow, gradual emotional distancing caused by partners assuming they know each other well enough that they stop asking questions and stop sharing.
A central concept Leslie introduces is 'mind-reading expectations' — the implicit belief that a partner should just know how you feel without being told. She identifies this as a measurable trait, admits she scores very high on it herself, and explains that once she became aware of it through a self-assessment scale, she was able to change her behavior significantly. She describes how expressing needs directly — saying 'I had a terrible day, I'm exhausted, can I have a hug?' — can prevent the compounding cycle of unmet expectations, stonewalling, and resentment.
Leslie shares personal stories to illustrate her research. She discusses her first marriage at 28, which she attributes to low emotional self-awareness — not understanding her own feelings, lacking emotional vocabulary, and dismissing her needs. She describes a pivotal moment where she discovered through an email chain that her mother had been having an affair during her marriage, and yet had advised Leslie to go through with her own wedding without disclosing this context. Leslie held onto this resentment for ten years before confronting her mother face-to-face while writing her book, a conversation she describes as deeply healing and relationship-strengthening.
The episode also covers practical communication strategies. Leslie walks through a 'day in the life' exercise using a jar to demonstrate how many feelings and thoughts go unsaid over the course of a single ordinary day — from not mentioning poor sleep to hiding workplace anxiety from a boss. She emphasizes that these unsaid things are actually choices, and that becoming aware of them as choices is the first step toward better communication. She notes that feelings are the category most chronically undershared, citing research that 76% of life regrets are about things people didn't do, and referencing Bronnie Ware's 'Five Regrets of the Dying,' one of which is wishing they had shared their feelings more.
On the topic of feedback, Leslie shares research on the 'feedback sandwich,' which she initially viewed with skepticism but found through her own studies to actually be effective — specifically, starting with something positive matters, even if the positive ending is less critical. She also describes her evolved approach to chairing Harvard's academic performance committee, where she now spends the first 20 minutes of difficult meetings simply listening before responding.
The conversation also touches on EQ versus IQ, with Leslie — a Harvard professor — asserting unequivocally that EQ is more valuable than IQ in life outcomes, particularly in relationships. She discusses how she is intentionally raising her sons with emotional vocabulary and awareness, holding her younger son back a grade to support emotional maturity over academic acceleration. Host Lewis Howes shares his own journey from low academic performance and high people-observation skills to building emotional intelligence through lived experience and the School of Greatness podcast.
Key Insights
- Leslie John cites a study showing that couples married an average of 12 years were wrong 80% of the time when guessing what their spouse was thinking or feeling, yet still believed they knew their partner well — demonstrating that confidence in knowing a partner outpaces actual knowledge over time.
- Leslie John argues that mind-reading expectations — the implicit belief that a partner should know how you feel without being told — is a measurable, relatively stable personality trait associated with lower relationship quality and shorter relationship length, but one that can be changed through self-awareness.
- Leslie John describes a 'day in the life' disclosure exercise showing that the vast majority of thoughts and feelings people experience throughout an ordinary day go unsaid, and argues that silence itself is always a choice — even when it doesn't feel like one.
- Leslie John references research by Cornell's Tom Gilovich finding that approximately 76% of people's life regrets involve things they did not do rather than things they did, and connects this to the chronic human tendency to undershare feelings — further supported by Bronnie Ware's finding that one of the top five deathbed regrets is wishing one had shared feelings more.
- Leslie John shares research on preschoolers showing that children who expressed emotions outwardly had physiologically calmer responses (lower galvanic skin response), while those who bottled emotions showed more stress — and that by second grade, boys had already learned to suppress expression, demonstrating how early socialization damages emotional health.
Topics
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