In department stores, the pattern is similar but the hours are different. The opening is at ten o'clock, but the employees arrive at nine-thirty to ready their department so the first customer can be properly served. Shortly before the store opens, some are stationed at the front doors to bow and extend greetings as customers enter. Others are assigned to the entrance of elevators and the bottom of escalators to perform similarly. The balance of the sales organization is at their sales post bowing, smiling and extending greetings. While stores normally close at six o'clock, employees don't leave at that time. Work areas must be tidied and made ready for the next day but only after the store is empty of customers.