Positivity Vending Machines

We're often told that it pays to be positive, but it has never been truer than in the attitude test conducted by the Coke Tweet Machine. In its research, Coca-Cola found that people in the city of El Prat de Llobregat in Spain are some of the most negative on Twitter—roughly each positive tweet sent is countered by a negative one. As a city that's in the midst of a harsh economic crisis, it's no wonder that the people have something to gripe about.

In order to get these Spanish citizens to lighten up, a unique vending machine was set up. The Coke Tweet Machine follows a user on Twitter and instead of charging a fixed price for a fizzy drink, it analyzes previous tweets to gauge positive or negative a person is; positive people payed less and negative people could expect to pay more. Since Coca-Cola is a brand that always strives to promote happiness, this campaign really challenges people to change their perspective, at least for the sake of their wallets.