Say nice to people

I remember when I was a elementary school student, maybe 3rd year. That was the class of art, we were doing "Hanga" which is you shave the surface of wood and dip it into pool of ink and rub it with a leather made thing, and that was beautiful. And when I entered the second step, I dipped my shaved wood with my teacher looking it, when I took it out, I said I didn't like the outcome. And the teacher kindly said "Do you want to try that again?" Of course I could do that, but I said no. But at this time, I said so just because I was bored of doing art thing, until now I am not good at art, especially drawing.
After all classmates had done, the teacher had everybody seated, and started to talk. She started talking about me, about I didn't do that again!! she said, "it's important to embrace the only chance, I didn't to that again, and I were good kid", I felt awkward a little, but so happy that I was praised. A little awkward because I did not intend to mean that, but praised in front of everybody was something precious to me. And now still, I remember this sometime after more than 10 years.
Here is a implication this story has, saying nice to people is so beneficial even if it was not true intention or not, especially to kids, compliment will be their strength of doing things, without that, they get shrink. Of course, to adults too. No big difference, even if they react saying "I was not intending to do that", they are at least not feeling bad, but happy being complimented.

It's SO EASY SAYING NICE TO PEOPLE AROUND YOU, LET'S DO IT NOW!