What action should a cashier take regarding the bag before checkout?

The correct action for a cashier to take regarding the bag before checkout is to check the ticket. This ensures that the items being scanned and placed in the bag correspond with the purchase being made by the customer. Verifying the ticket helps in confirming that all items are accounted for and priced correctly, preventing any potential errors during the transaction. This step is crucial for maintaining accuracy in the checkout process, ensuring that customers are charged the correct amount and that the cashier is aware of any specific promotions or discounts applied to the items being purchased. It is an essential part of providing good customer service and preventing discrepancies.

Other actions such as filling the bag with items or ignoring it until the end do not prioritize the importance of ensuring that transactions match the purchases being made. Giving the bag to the customer might also lead to premature or incorrect packing of items before confirming the accuracy of the sales ticket.