Have A Great Evening

When you usually say good night ... you mean that too ... what percentage do you mean? 3

And why say when you don't really mean it or when you really mean it. Or why should I say that if I didn't mean it?

Is it common in the US and when do you feel thirsty? Is it common in the UK or Europe? (In a language other than English?)

Why do so many people look so sincere ... but that doesn't make sense? Or what are you actually expressing or feeling? Why this?

Interesting question and I have never paid attention to it and I had to ask myself.

I was worried that after thinking for a moment, I would say more politely than I would like. I'm afraid to say it unconsciously, reflexively, if you want to.

Sometimes I speak sincerely when I say this to a dear or close friend, otherwise it is pure reflex.

As I opened my eyes to my ugly O hat, I found a star.

Have A Great Evening

Good night
When people say good night and so do you. Also, don't say why you're serious, it's just more polite and I agree with C7, it's a way to say goodbye. To some extent, a person usually wants a good night instead of a bad night, but in reality it is just a way to stay polite and end the conversation.
Good morning to each other is a very old tradition. Good morning to you, sir, and the rest of the day to you, dear sir. Play well now or I'll kick you out because you don't use it.
You are right, it is commonly used as a tweezers and is rarely offered in the UK.
I can't answer for other countries.
He received verbal invitations from those who did so. Find me now, meet me whenever you want.
People do this to look polite. I often do not want!
Thank you and good night to you too.
I think it's good because it's respect ...
Definitions,
Lokesh