Proper dining etiquette has a place whether you're enjoying a meal at a five-star restaurant, a fast-food joint or at home. While there are some written rules about social etiquette, there also are unwritten rules rooted in courtesy. By following these guidelines, any dining experience can go smoothly. Put down the phone When dining out or attending a party, direct your attention to fellow guests or dining partners and not your devices. Turn off the ringer, resist the urge to check the sports score, wait to text a friend until you're done, and devote your attention to the meal. Let…