From The New York Times Magazine:
‘‘Keep your limbs away from your body,’’ says Deborah H Gruenfeld, a social psychologist who teaches at Stanford University. Some research shows that people posed in expansive postures feel more powerful, exhibit higher testosterone levels and have lower levels of the stress hormone cortisol — all characteristics of high-ranking social status. Make eye contact while you’re talking, but feel free to look away when others do. This is what scientists call having a high ‘‘look-speak to look-listen ratio,’’ which is common for dominant members of groups.
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