Bring menus, water and meals out in a timely manner. Clear with the same attention. Listen and pay attention to the customer. Nothing is worse than a distracted wait person who is looking off into the restaurant when the customer is giving his order. Be consistent with your menu items.
People often return to a restaurant to enjoy a favorite dish over and over again.
If it is not consistently good, you will lose that repeat customer. Let the customer experience a product. Most people order what they sample, so if you have a new appetizer, bring free samples to the table. It will not only turn them on to a new taste, but the order will increase your total sale as well. Keep things interesting by introducing new dishes into your menu from time to time.