Is it important to say 'thank you'?

It is very important, I think.
I always say thank you.
I think it is very polite.
When someone helps me to do something, I always say thank you for his kind.

Peerada 026 3EN

Yes, it is. Saying thank you is a way of showing people you appreciate whatever it is your thanking them for.

Pattharaporn 055 3EN

Of course, it's very important to me and everybody.
Saying thank you is an important social manners.
We have to say it when someone do the good things for us.

Chonthicha 041 3EN