I think the idea was to add it as an additional argument on the order when when inputting an order as an ask me button or potentially just as a cheeky little Easter egg but it would ring up as no dollar charge nothing more really. But tracking was on individual orders and since you could ring a smile and summit it as a order "pay for it " $ 0.00. And then wait 10 to 20 seconds and you could dismiss the order as fulfilled. Each hand off station in the store has a set of screens that show what the order is and what’s coming next for a couple of orders. You can dissmis orders out of order buy using a keypad. So a small coffee order can be dismissed while leaving the 15 filet of fish order up as a reminder. Any time you would see a order for a smile. You would hunt that order down as soon as you saw it and dismiss it. It became a huge joke about how many smiles per hour were being done during district meetings. Can’t imagine corporate ones.