Coca Cola is coming to town today (Thursday) as part of a nationwide Happiness Tour. An interactive pod will be in Barnstaple Square from 11am-6pm. Its all part of the Coca-Cola happiness tour, which will be bringing along Coca-Cola vending machines with a twist where you pay with a smile. Simply go along and choose your coke, stand in front of the machine and if it picks up a happy face youll get a free sample. The company will also be handing out free smiley straws to take fun pictures with your friends. People who share their selfies online could then win prizes.