That is definitely one of the cases, but there are other cases when we are actually happy and just waking up to the sun shining through our windows and with those hugs and good mornings when u walk to work, when u re gonna leave your kid at school or when u re gonna fetch the bread, that is a happy morning, I'd say!
It could be that smiling is a good manner to be poilite as well. There is a big difference of a good morning and a serious or sad face than with a happy face. Same happens with a simple Hi.
I remember that when I used to work in China in Kmybaby Early Childhood Education with kids from 2 to 6 years old; no matters how bad my night had been or how sad i had woken up, as soon as I got into the classroom and I saw those rounded little faces smiling at me, I swear to u that my day turned all that grayness into pure sunshine. How many great moments, wonderful memories I have because of my experiences as a teacher in China!
The very first time I stood up in front of a class, it was so scary! I was so nervous! There was a class of 4 to 5 years old, rich kids from the town I used to live for 4 months where the only foreign face was mine. They were kids that had no real interest in English, but their parents had convinced them to learn it anyways. It was tough, but a great experience and it taught me a lot as a person and as a teacher. Do not believe that the only ones who learns are the students! So, as I said I stood up in front of the spoiled kids, who were staring at me with very pointy eyes and serious faces. I turned my back for a minute, I took a deep a breath and the next time I was face to face with them I had a happy face with a beautiful smile drawn on it!
Everything changed, the very scary environment became a friendly one and thanks to a smile from the teacher. I kind of taught them that day not only that the English teacher was not a quitter but also that a smile can change the world.
Since that day, I wake up smiling and I try to keep it that way during the whole day. In Sweden is not very common to see smiles. Everybody is so busy with their own lives and cellphones 24/7 that most of the Swedish on the streets not even bother to look up or to the sides, well of course when they are going to cross a street. When they do and I happen to be around them, they see me smiling and that seems to be kind of weird for them. Just once I have smiled to smeone and she smiled at me back. She was a baby!
A smile can be a mechanism of hiding the truth like a mask we put on our faces when we are going through difficult times; can be a sign of how happy we truly are; can be a weapon to fight nervousness; can be the believe that even though things in my life are not the best at the moment, everything will be ok ( positive thoughts). A smile can change a moment, a certain mood, a situation.
A smile can change the world!