You can get extra points on a level by chaining actions. To create a chain, repeat the same action multiple times in a row. For example, collecting orders from two, three, or four customers in a row will create a two, three, or four time chain, respectively.
Chainable actions include: taking an order, delivering an order, delivering a drink or dessert, picking up a check, and clearing dishes.
Some actions will not break your chain. Actions that will not break a chain include, placing orders on the order wheel, placing dishes in the dish bin, cleaning up spills, delivering crates, delivering menus, delivering coffee, and seating waiting customers.