The clients come alone or in groups, and you have to serve them pizzas on time and according to their orders. It's a complex game that requires a good time of interaction to undertand how to proceed in all cases.
When a client arrives, click at him and then click an empty table; have in mind that there's many incoming groups and you cannot put a group of three in a table for two. When you see a tinkling number in the table, it means they will order; click on the table to move the waiter to there (if there's no available waiter, an icon will show the pending task at the left bar of the screen); at the bottom you'll see the order and the available chefs to do it, with their respective skills (you should always take a good chef for every order); when an order is ready it is visible on the bar: click on the table to collect the money and let the table ready for the next clients. The game offers detailed pannels to compare pizza recipes, chef skills, pending tasks and already reached goals; you can see them by clicking on the little icons that are visible on the right vertical bar, but it's more funny to find them by yourself.