 The third psychological hack is the Barnum Effect. You know what is the most interesting topic? The topic is you. Everyone has this insatiable appetite to talk about themselves. And Dunkin' Donuts, they took full advantage of our desire to talk about ourselves in their campaign. So they created a ton of buzz, a ton of noise and a ton of sales. This campaign is the Dunkin' My Donut Personality Campaign. So what happened? In 2017, in honor of the national donut day, Dunkin' Donuts came up with a campaign which matched your personality with what you eat. Basically, they're telling you what type of personality you are. Now everyone goes online, created a ton of buzz just to share people with what type of donuts they represent. Not only that, they also matched you with the perfect cup of coffee, being able to actually match the cup of coffee that tastes best with the donut of your choice.