A coworker of mine is a fanatic of the German beer Paulaner Bräuhaus. Talking to him recently, I realized his infatuation goes beyond just the quality of the drink – most of it is due to his communication with the brand. On a recent weekend, he shared a photo of Paulaner Bräuhaus’s Octoberfest release that he had picked up from a big-box liquor store. He tagged the German brewery in the photo and then received a direct message to his account thanking him for the purchase. He briefly chatted back...