Which method is NOT typically used to increase sales on drinks?

Choosing to reduce the drink size is not a typical method used to increase sales. In retail and food service industries, the goal is usually to maximize revenue, and offering larger sizes, or upsizing, often encourages customers to spend more. Upsizing takes advantage of the psychology that customers perceive greater value when they get more for a slightly higher price. Similarly, adding additional flavor shots and suggesting additional toppings enhance the drink's appeal and boost the price, both strategies designed to increase overall sales.

In contrast, reducing the drink size would likely decrease the price point and could dissuade customers from making a purchase, as they may feel they are getting less value for their money. Often, customers are drawn to larger sizes that offer perceived savings or better value, making upsizing or adding enhancements far more effective strategies for increasing sales.