Smile and your hotel guests will smile with you. The tech says so

A study by hotel giant Hilton, and promoted by British rapper and TV personality Big Zuu, has revealed the importance of service with a smile.

Hampton by Hilton, the group’s biggest brand, commissioned academics from Goldsmiths, University of London, to ascertain the importance of a cheery disposition.

Staff at the brand’s High Wycombe hotel donned eye-tracking glasses technology to record the facial expressions and engagement of guests during key interactions such as check-in, check-out,…