25 Manners Kids Need to Know by Age 9

Manner #1
When asking for something, say "Please."
Manner #2
When receiving something, say "Thank you."
Manner #3
Do not interrupt grown-ups who are speaking with each other unless there is an emergency. They will notice you and respond when they are finished talking.
Manner #4
If you do need to get somebody's attention right away, the phrase "excuse me" is the most polite way for you to enter the conversation.
Manner #5
When you have any doubt about doing something, ask permission first. It can save you from many hours of grief later.
Manner #6
The world is not interested in what you dislike. Keep negative opinions to yourself, or between you and your friends, and out of earshot of adults.
Manner #7
Do not comment on other people's physical characteristics unless, of course, it's to compliment them, which is always welcome.
Manner #8
When people ask you how you are, tell them and then ask them how they are.
Manner #9
When you have spent time at your friend's house, remember to thank his or her parents for having you over and for the good time you had.
Manner #10
Knock on closed doors -- and wait to see if there's a response -- before entering.
Manner #11
When you make a phone call, introduce yourself first and then ask if you can speak with the person you are calling.
Manner #12
Be appreciative and say "thank you" for any gift you receive. In the age of e-mail, a handwritten thank-you note can have a powerful effect.
Manner #13
Never use foul language in front of adults. Grown-ups already know all those words, and they find them boring and unpleasant.
Manner #14
Don't call people mean names.
Manner #15
Do not make fun of anyone for any reason. Teasing shows others you are weak, and ganging up on someone else is cruel.
Manner #16
Even if a play or an assembly is boring, sit through it quietly and pretend that you are interested. The performers and presenters are doing their best.
Manner #17
If you bump into somebody, immediately say "Excuse me."
Manner #18
Cover your mouth when you cough or sneeze, and don't pick your nose in public.
Manner #19
As you walk through a door, look to see if you can hold it open for someone else.
Manner #20
If you come across a parent, a teacher, or a neighbor working on something, ask if you can help. If they say "yes," do so -- you may learn something new.
Manner #21
When an adult asks you for a favor, do it without grumbling and with a smile.
Manner #22
When someone helps you, say "thank you." That person will likely want to help you again. This is especially true with teachers!
Manner #23
Use eating utensils properly. If you are unsure how to do so, ask your parents to teach you or watch what adults do.
Manner #24
Keep a napkin on your lap; use it to wipe your mouth when necessary.
Manner #25
Don't reach for things at the table; ask to have them passed.
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Originally published in the March 2011 issue of Parents magazine.