Несколько примеров плохих манер на . например, в британии неприлично спрашивать сколько зарабатывает твой собеседник. а что можно сказать относительно россии/украины?

It's a bad idea to take off your shoes entering an American/British house.
In Russia it's not right to discuss anybody not seeing the person.
In America you will be thought a really ill-mannered person if you are late.
In America It's the right thing to say "Hi" to any familiar person every time you meet during a day.