What behavior can best reflect impoliteness?

Some people just like to interrupt when others are talking, which is very uncultured. If you have something to say, you must wait until people have finished.

The second is to see that the elders do not take the initiative to say hello.

Even if you don't like to talk at ordinary times and are introverted, you should take the initiative to say hello when you meet your elders. You can't wait for your elders to talk to you first. This is also the embodiment of education.

Third, find faults in others' faces.

Even if you two have a very good relationship, you can't directly tell others' shortcomings, because everyone has self-esteem, especially when many people are together, it will make the other person lose face and be rude.

Fourth, the exit is dirty.

Some people regard swearing as a habit, and it is uncomfortable to speak without two dirty words. This is also a sign of illiteracy. Think about it, a truly educated person wouldn't say such a thing.

5. Eating makes a loud noise.

It's annoying to smack your lips and shout loudly when you eat.