
How to communicate well: interpersonally, in teams, and on stage
From ConTejas Code by Tejas Kumar
February 9, 2026 · 1h 51m
About this episode
In this episode, Tejas Kumar analyzes the science of communication and provides frameworks for effective speaking.
Links CodeCrafters (Sponsor) Steve Jobs iPhone Introduction (2007) Steve Ballmer "Developers" Bill Clinton "I did not have sexual relations" Tejas's First Talk (JSConf EU) Tejas at React Summit (The "Sweaty Room" Talk) Amy Cuddy's Power Posing TED Talk Diazno on ConTejas "Thin Slicing" (Ambady & Rosenthal) Mehrabian's 7-38-55 Rule (Original Paper) Elaboration Likelihood Model (Petty & Cacioppo) Cognitive Load & Multimedia Learning (Mayer/Wiley) Narrative transportation Exposure Therapy for Public Speaking (Frontiers) Breathing & Physiological Sigh (PMC) Deliberate practice Feedback Spacing + retrieval practice Summary In this episode, we're doing something different. Instead of analyzing code, we're analyzing the science of communication. I've spoken on hundreds of stages, from massive conferences to small, sweaty rooms, and I've learned that great speakers aren't born—they're built. We're going to dismantle the "talent" myth and replace it with a repeatable system. I'll walk you through the three levers of connection (Clarity, Trust, Energy), debunk the famous 7-38-55 rule, and give you practical frameworks like the "4 L's of Listening" and the "4 C's of…
People in this episode
Host: Tejas Kumar
Topics covered
- communication
- public speaking
- team dynamics
- clarity
- trust
- energy
- storytelling
Keywords
- communication
- public speaking
- clarity
- trust
- energy
- storytelling
- feedback
- listening
Sponsors
CodeCrafters
Mentioned in this episode
Books & works: JSConf EU, React Summit, TED Talk, Elaboration Likelihood Model, Cognitive Load & Multimedia Learning, Exposure Therapy for Public Speaking, Breathing & Physiological Sigh
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