Smile has hidden meanings that can, sometimes, try to say something which only emotionally intelligent or people connected by the heart can understand.
Ohk, there are many types of smiles and many interpretations of each, many articles about how to decode them. But believe this, you need to be intelligent enough to understand feelings of the other person to understand the reason behind their smile.
For example, people smile when they feel happiness from inside or when they are in a state of bliss. People smile upon seeing someone they are related to; people smile to give out positive energy, the positive feelings they have.
This thought originated when I felt happy after feeling what the other person was feeling. You will know the feeling; when you are connected by heart and take in the positive energy, they sent. This happens when you are mature and intelligent enough to understand the deep meanings of some simple things in your life...one of the things being the smile.
Believe me, like a yawn; smile is also contagious and it is good that it is. A smile can have many meanings and if you try to go by the so called scientific explanations or try to be a mentalist, you might get disappointed from the result; when trying to decode the meaning of that one contagious smile. That is why you must take in the postive energy from the person who is smiling; smile never gives out negative energy, and make it generate some positive energy inside you. This way you would feel the bliss.
I can put the thought in many ways but the best way is: Smile can not be always understood because either you are not emotionally intelligent to understand how that person feels or you are not connected to that person by heart or vice versa.
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