Dining Etiquettes

You need to act respectfully and responsibly when you're dining out. You shouldn't slouch in your seat, take off your shoes or put your feet up on the table. There are other manners you need to follow:-

One of the best ways to ensure your part as the gracious diner is to make reservations.
Once you have your reservations, make sure you show up on time. If you don't think you'll be able to get to the restaurant on time, call ahead. Let them know you're running late, and if you won't be too delayed in your arrival, the restaurant should be able to honor your reservation.
You should also call ahead if your party's size changes, or, if for some reason, you won't be able to honor your reservation after all. It's courteous to let a restaurant know that they can take away a seat or two, because fewer people will be joining you for a meal. Those unoccupied seats can go to other dinners. On the other hand, if your party has grown to a larger size, you must let the restaurant know this well before you arrive.
Keeping your voice down not only shows respect for the other diners, but also helps you avoid sharing your private conversations with the world.
It is a necessity to have table manners when you are dining out with colleagues, clients, family and friends. Your table manners begin from the minute you walk into the restaurant. For instance, if the host tells you to follow her to your table, do so. Don't rush ahead to where she's gestured to sit but instead walk behind her.
Once you've arrived at your table, you should always ask to the meal's host as to where everyone should sit. If you're the host and this happens to be a business lunch, you should direct people where to sit so that you can take a seat that's somewhat in command.
When it comes time to order your food, you should let your guests order first. Try to be as polite as you can when telling the wait staff what you want by saying something like, "May I please start with the soup, then I'll have salad? Thank you.
Do not tuck the napkin into your collar or tie it around your neck. Napkins belong on the lap, so be sure to remove it from the table when you sit down. It doesn't matter if it's paper or cloth; the same rule applies for both.
Next, start your meal by using the utensils the farthest away from your plate, and then work your way in as you work your way through your courses. If you order an item for which there are no utensils already on the table, such as a soup spoon, your wait staff will bring it to you before that course arrives.
You may notice a spoon or fork that's laid out on the top of your plate; those are to be used for dessert and coffee. Your bread plate is to your right, and your drinking glasses are to your left.
You shouldn't eat until everyone else has his or her food.
Make sure you chew with your mouth closed, swallow before speaking and eat at a slow pace. Try to remember to place your utensils down in between bites, and don't forget that napkin on your lap, use it to wipe your mouth if necessary.
When interacting with the wait-staff, be sure you return their greeting when they seat you or come over to introduce themselves. Initiate eye contact, make note of the person's name, and if you want to go for behavior bonus points, ask him how he's doing today.
There may be times during your meal when you need to excuse yourself. It could be to use the bathroom or because you sense that you've got a rather large piece of spinach stuck in your teeth.
Simply announce to your table that you'd like to excuse yourself to go use the restroom, place your napkin on your chair which signals to the wait staff that you will be right back and then push your chair in.
Traditionally, people tip 18 percent in restaurants and some establishments will automatically add on that tip for larger parties (Such as six people or more at one table).
While handling a bad service, you should first seek out a manager. Only a manager can adjust your bill or offer you a complimentary meal in the future to make up for things that went wrong today.