The thing is, LoveBite may well work. People do like videos of food, even when the food looks a bit like sick or has been cooked by an American. And so the app’s claim, that these waiters can increase an average spend between five and 10 per cent, could prove true. On the other hand, people love photos of food too — that’s what got Instagram going, before people remembered swimsuits — but anyone who’s eaten out more than once knows that restaurants with laminated picture menus are only any good for those seeking an excuse to spend more time reading on the loo.