depending on your restaurants operation there may be specific pre-shift tasks

such as

folding napkins

cleaning tableware

clearing, bussing, setting, and preparing tables

restocking table seasonings

and condiments

preparing and cleaning menus

learning the beverage and menu specials

preparing and or stocking sides, garnishes,

and bread baskets

cleaning trays and tray stands

preparing beverage service items/

The bottom line:

pre-shift responsibilities include anything and everything that will make

your job as a table server go faster or easier, or improve the guest's experience.