Pret A Manger employees are given the freedom to allow giving of freebies to customers whom them like thus bringing a sense of randomness in how they BREAK THE SCRIPT, surprise the customer and hence create MOMENTS of ELEVATION.
Chip and Dan Heath make a mention of this unique strategy in their best seller, The Power of Moments and provide an illustrative example as to how to create a WOW moment.
Come let us pile on motivation..