The people who created this YouTube video were probably just trying to be entertaining, filming people’s reactions to a perfect stranger coming up to them in an airport, telling them to do some random things. And I have to admit that the video IS entertaining. Some of the “victims” of the experiment (or prank, as it were) just did what they were told to do. One person, however, became confrontational, and the body language made me think that he was getting ready to get physically violent with the guy. Others seemed to be going along with doing what they were told to do, almost as if they thought that they were humoring a mentally challenged person, or because they did not want to “cause a public scene.”
I did find the video to be a very interesting social experiment, even though I think that it was just meant to be entertaining.