Barista receives a customer lining up to pay in a cafe's counter where a QR code information graphic is displayed. In a hotel lobby, two QR Codes promote the same thing: a 10% discount on the ...
In a hotel lobby, two QR Codes promote the same thing: a 10% discount on the breakfast buffet. One sits at eye level beside the elevator buttons, right where guests wait with their phones in hand. The ...
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