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2. John Tozzi, “The Escalator Pitch,” BusinessWeek, May 16, 2008, .

3. Randy J. Larsen and Todd K. Shackelford, “Gaze Avoidance: Personality and Social Judgments of People Who Avoid Direct Face-to-Face Contact,” Personality and Individual Differences, vol. 21, no. 6, Elsevier Science, 1996, pp. 907–917.