The digital tip debate intensifies as a tipping etiquette expert weighs in on whether customers should expect a "thank you" after selecting a gratuity.
https://www.foxnews.com/food-drink/tipping-screen-puts-customers-spot-experts-reveal-when-its-ok-hit-no-tip
https://www.foxnews.com/food-drink/tipping-screen-puts-customers-spot-experts-reveal-when-its-ok-hit-no-tip