In any restaurant or food service environment, speaking to customers should always involve the utmost respect and courtesy. This goes for all workers, from drive-thru attendants to servers at fine dining establishments. This is rather idealistic. However, restaurant workers should follow these general guidelines when speaking with customers: - See more at: http://www.foodservicewarehouse.com/education/restaurant-management-and-operations/-how-to-deliver-quality-and-service-in-your-restaurant/c28048.aspx#sthash.77ZEKWHR.dpuf