pLiverpudlian shopper John Schaer was surprised to hear the door of his local Tesco store cheer customers, as he was doing his shopping. He recorded footage of this clever and upbeat marketing technique, which enticed shoppers into the Tesco Litherland store, Liverpool. Of course, no-one was actually cheering for customers, although this footage of the humorous noise the door made has proved a hit online. Credit: John Schaer.