During the first weeks of the newborn's life it is possible to observe a smile that is called "first smile" or "angelic smile" and that is a spontaneous and reflex lip movement. The smile does not respond to any control, and is triggered automatically, it is fleeting and incomplete.
The so-called primitive reflexes or reflexes of newborns, are present at the time of birth or a little later, and some can occur even before birth. The angelic smile It is one of the latter, so in modern and clear 3D ultrasounds you can see some babies "smiling" in the womb.
The first smiles can be easily caused by gently touching the baby's cheeks after the first week of life. Also usually appear While they sleep. Gradually, this smile will give way to an act of smiling more consciously, towards the first month of life. Then we will have a selective social smile, in response to another person.
They differ because these selective smiles appear when the baby already begins to fix the gaze (and see more clearly), and it is when you recognize a familiar face and close when he starts those smiles that we will correspond with great joy. The socialization of the baby is on its way.
