We created never-before-seen digital vending machines on three of London’s most iconic high streets.

The public could try the new crisp flavours for free by simply sending a tweet.

This was a world-first integration of Twitter, digital screens, purpose-built software and traditional vending hardware – all shrunk to fit into poster units at a bus shelter.

The experience was made even more memorable by including legendary Walkers ambassador and British football pundit Gary Lineker in the bus stop.

To extend the reach of the executions, a 90-second video clip was posted across our social channels.

Over 8,500 people engaged with the machines in just one week but millions more were exposed to the campaign.

Our video was viewed over 1.1 million times, the campaign drove 5.7 million Twitter impressions (double the previous two weeks) and it generated over 12 million PR impressions worth over four times the cost of the execution.

We saw a 22% increase in positive brand sentiment for Walkers in comparison to the first TV-stage of the campaign.

Key equity scores saw positive shifts, too, with ‘Saliency’ up 4%, ‘Distinction’ up 13% and ‘Being seen to be setting the trend’ up 14%.