However, when other diners were invited to take two chocolates from the basket, the waitress’s tips rose by 14.1 percent. What could account for the dramatic difference? For one, the second chocolate represented a meaningful increase in the size of the gift—a doubling. Plainly, meaningful is not the same as expensive, as the second chocolate cost only pennies. Providing a costly gift can often be meaningful, but costliness isn’t necessary. Of course, the receipt of two chocolates was not only twice that of one chocolate but also more unexpected.
