This intervention promoted stair use among people attending the American College of Sports Medicine annual meeting in 2001. After 3 days of observation a prominent sign stating “Be a role model. Use the stairs!” was posted. 16,978 observations were made. Stair use increased from 22% to 29%. Active choices (stair use or walk up escalator) increased from 28% to 40%. CONCLUSIONS: Relatively few conference attendees were persuaded to stair-use behavior. Health professionals should be encouraged to be “active living” role models.