The researchers call this smile as Social Smile, a warm gesture intended specifically for a person to whom babies are looking at.
Social smile is a smile in response to contact with others, such as smiling back at a caregiver or smiling to get the caregiver’s attention. Social smiling is not only enjoyable; it is also essential for your child's brain development. Baby is learning social cues and how to get caregivers' attention. They'll make more eye contact and be more interested in people's faces.
Aside from the warm fuzzies, the social smile is an important part of a baby's social and emotional development. When you consistently respond to your baby's cues about when they are ready to play and when they need a break, you are communicating to them that their thoughts and feelings are valued.
Learn more about social smile here:
https://brainly.com/question/8295842
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