1: Dan Pink’s book: Pink, D. H. (2012). To sell is human: The surprising truth about moving others. New York: Riverhead Books.
2: Retail sales impact: Jacob, Celine, et al. “Retail salespeople’s mimicry of customers: Effects on consumer behavior.” Journal of Retailing and Consumer Services 18.5 (2011): 381-388.
3: Main research: Maddux, William W., Elizabeth Mullen, and Adam D. Galinsky. “Chameleons bake bigger pies and take bigger pieces: Strategic behavioral mimicry facilitates negotiation outcomes.” Journal of Experimental Social Psychology 44.2 (2008): 461-468.
4: Psychology Today article: Face to Face: Relating in a Changed World.