The user experience / payment flow on the payment terminals (in Canada at least) to make a tip is insane. Every terminal is different. The prompts on screen,

The user experience / payment flow on the payment terminals (in Canada at least) to make a tip is insane. Every terminal is different. The prompts on screen, rarely correspond to a button that says anything similar. “Yes” usually means press the green button. Although often the yes / no on the prompt are in the opposite positions to the red and green buttons on the keypad. But sometimes it means the small button closest to the on screen “yes”. And sometimes they’re touch screens. Regardless, paying in Australia is actually tap and go. In Canada you may as well insert the card, you’re going to be here a while selecting a bunch of options for tipping.