"ABC News asked two couples, Kaolin and James, and Ashby and Leslie, to sit on park benches in Verona, N.J., and then in Birmingham, Ala., to see if there were any differences in reaction among passersby in the two regions of the country. Although all four individuals were actors, showing their love and affection for each other was far from acting. Kaolin and James have been in a committed relationship for two years, while Ashby and Leslie are a married couple who have been together for eight years."
ABC News has more here.
This video is from ABC's 20/20, broadcast April 25, 2008.