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Leaving a
in a restaurant is a part of
in many countries. We tip a
or someone in a hotel. We might put a tip in a jar next to a cash
. There is now a new way to tip - self checkout machines. People are not
about them. Some of these machines are asking for a 20 per cent tip. They are in
, cafes, bookstores and clothes shops in the USA. There is no face-to-face
between people. Many
in stores say they are not happy about leaving a tip and giving
money to a
.
