Guinness wanted to get more people talking about the brand, so they gave local bars some new pint glasses. At first glance, the glasses looked like a regular pints- but bartenders and patrons learned that when they were filled with a Guinness, the glasses were actually printed with a QR code.
Created by BBDO NY, the QR code could only be scanned when a Guinness (or for argument’s sake, any dark beverage) was in the pint glass; regular beer didn’t create enough contrast, and when nothing was in the glass, the QR code just looked like a creatively etched design on the side of the cup.
When bar-goers scanned the QR code with their smartphones, the app shared the news to friends that they were enjoying a Guinness via twitter, foursquare, Facebook, and Instagram updates. Scanning the QR code even sent out the bar-goers’ locations– with the hope being that friends who saw the updates would join their pals at the bar for more Guinness drinking.