Social triangulation is a way to create dynamic conversation between three or more people who do not know each other. It prevents a person feels uncomfortable in a conversation that only takes place between two people. It is common to feel the need to "think of something to say," when, for example, sitting on the train and a stranger starts talking to a. Read a true example of social triangulation (in Swedish): http://atombomb.se/professionellt-social-546/ Presentation in Swedish: http://www.slideshare.net/Ulf_Liljankoski/social-triaqngulering