Macho or metrosexual, beard or no beard, ... Primus, a quirky Belgian beer brand, believes that guys should rebel against these confusing trends and follow their instincts. They came up with "Bartinder", a mobile stunt using Tinder. They made profiles of girls on the popular dating app and invited guys who "matched" the girls to act like real men, and go out to pick up a girl at a bar. Afterwards they gave them 2 free beers to share with a girl.