"Our study finds that the mere presence of social media icons on a Web page where we shop appears to cause us to feel as if our purchases are being watched by our social network, and we adjust our buying decisions accordingly," said Claudia Townsend, an assistant professor of marketing at the University of Miami School of Business Administration, in a statement. "Marketers should be aware that the placement of these symbols in their Web design strategy could have a major impact on buying behavior."