Sit down with a table of five, order some small bites and only four come to an order. A better restaurant will tell you in advance and offer to add a fifth. An even better restaurant, like Cumulus Inc. in Melbourne, goes one step further. While having a long lunch, I saw the same menu item come out in many different forms. A main dish that the restaurant beefs up to serve family style for a group of friends. The small appetizer that gets split into individual serving cups for a business lunch. Having this level of flexibility (really, just intuitive service) is what makes the difference.