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When is a shrug just a shrug? What are you really saying when you fold your arms across your chest? Whether we know it or not, we’re constantly conveying signals to other people through our body language and facial expressions. On this week’s Please Explain, we’re decoding body language and non-verbal communication, and looking at the psychology behind why we communicate this way with Dana Carney, Associate Professor at the UC Berkeley Haas School of Business. 

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