Infant attachment
Bowlby wrote that the care and love a baby gets from its parents cause it to form an important idea. He called this idea the internal working model.  The internal working model is how the baby or child thinks about itself, its parents, and other people.  When parents have taken loving care of a baby and child, it grows up with a positive internal working model.  This child will think that it is lovable, because it was loved.  It will think that the parents are good, because they were caring.  And the child will not be afraid to try to make friends with new people, because it will expect people to be nice.  Children who have a positive internal working model are also likely to be kind to other people.   Bowlby believed that a positive internal working model would help people make friends.