Sitting in a hard chair can literally turn someone into a hardass. Holding a heavy clipboard leads to weighty decisions. Rubbing rough surfaces makes us prickly. So found researchers studying the interaction between physical touch and social cognition. The experiments included would-be car buyers who, when seated in a cushy chair, were less likely to drive a stiff bargain…. “The way people understand the world is through physical experiences. The first sense they develop is touch,” said study co-author Josh Ackerman, a Massachusetts Institute of Technology psychologist. As they grow up, those physical experiences shape how people conceptualize abstract, social experience, he said. Other studies have shown that kids are better at math when using their hands while thinking. Actors recall lines more easily while moving. People tend towards generosity after holding a warm cup of coffee, and are more callous after holding a cold drink."