Here are some of the manners rules that are most commonly broken:
1.Forgetting to introduce people.

When you are with two or more people who don't know each other, you should introduce them. If you aren't sure of someone's name, be honest about it and ask for it. It might be momentarily embarrassing, but not as much as saying the wrong name.
2.Taking a call on your cell
phone when you are at the cash register.

Doing this is not only rude you'll hold up the line and perhaps miss something important that the cashier needs to tell you.
3.Forgetting about the presence of service people.

When you dine out, have repairs done on the house, or visit the hairdresser, remember your manners. Even if you're deep in conversation with the person you're dining with, don't ignore the server when she arrives at your table. If you need a few more minutes to make a decision, let her know. While it's fine to go about your business while the plumber is fixing your sink, be nearby to answer questions. The customer next to you at the hair salon might be extremely interesting and fun to chat with, but remember that unless you communicate with your hairdresser, you won't get the style you want.
4.Yelling at the children in public.

Parents who lose their tempers out in public need to spend more time disciplining their children in private. This includes teaching them manners and letting them know beforehand what the consequences will be for bad behavior.
5.Boasting about anything.

Bragging comes natural to most people, especially when they feel one-upped by others. Just remember that boasting is rude and inconsiderate, no matter how fast your cool new car can take you from zero to eighty.
6.Coughing or sneezing on others.

If you don't feel well, stay home. You don't need to be spreading cold and flugerms just because you feel entitled to be out and about.
7.Blatantly eavesdropping.

Sure, it's fun to listen in on other people's conversations, but how would you feel if someone else did that to you? Give people space, and if you can't, try to tune them out. There's some stuff you just don't need to know.
8.Gagging your coworkers and friends with fragrance.

That may be your favorite perfume, but not everyone else will feel the same way. In fact, some people are deathly allergic to fragrance. When you work in close proximity to others, refrain from applying extra fragrance that can make your coworkers sick. This also applies to times when you know you'll be in any crowded place.
9.Being bossy.

Your friend or sister might have told you a problem that you know how to fix in your sleep, but don't offer advice unless you're asked for it. Telling other people what to do is annoying and might send people walking a wide berth around you.
10.Hogging equipment at the gym.

Interval training is a great way to stay in shape, but don't take up three pieces of equipment when other people are waiting in line. Step aside and let someone else work out.
11.Blocking traffic in a public place.

When you spot a long-lost friend at the mall, pull her to the side to catch up. Standing in the middle of the traffic pattern will get you some dirty looks and may even cause injury if someone isn't aware that you've stopped.
12.Being indecisive about an RSVP.

If you're not sure you'll be able to attend someone's dinner party or other event, be open and honest. If weeks or days go by and you still don't know, send your regrets so the person can invite someone else in your place.

I hear

That no 12 no b 4 Naija

soooo to wear perfume now don turn bad manner? Nor be smalltin ooo.