The mother was embarrassed at her son's bad manners.

Mother told me to behave myself.

She told her son to behave himself at home.

The behavior of her children in public dismayed her.

She always pays attention to her children's behavior.

She is quite decent in conduct.

She bears herself very well.

I've never minded her behaving badly.

I simply cannot put up with her manners.

I'm constantly telling her to behave herself.

I don't think they can behave themselves at the party.

I was quite taken aback at their bad manners.

He always pays attention to his children's behavior.

He has learnt manners.

He is an ill-mannered man.

He is careful about his manners.

He behaved badly.

His good manners predispose people to like him.

His child behaves well.

Model your manners on his.