When a person smiles, it can only be for two reasons, or is happy, or wants to appear happy. We will not wonder why we smile when we are happy, since it is a natural reaction to happiness and fun, however, there may be circumstances in which we have to resort to the other option,
In society there are unwritten rules that define how far we must be from other people to be comfortable, this distance can vary between 15 and 150 centimeters depending on the circumstances and the environment, although it can also be measured in steps, inhodoros, seats, etc. (to illustrate, we can make another person feel uncomfortable
Putting your hands in your pockets, like all gestures, has several meanings, but it can be summarized in the three things contained in the title, that is, to lie, to hide details, or not to participate in a conversation.