Observe the infant during routines of the day.
Watch the facial expressions and body movements of the child in different situations. Facial expression, mouth movements, and hand movements will change depending on the sensory input.
The infant will show increased affect and body excitement when he recognizes familiar people or preferred objects (such as a mobile). The infant also will calm with specific people and actions and react differently to different smells, tastes and textures.
Discuss with parents the baby’s emerging personality, growing preferences, and ability to discriminate people and objects. Familiar and preferred is good, but children also need to be exposed to new things, such as the sights and smells of the outdoors.
 North Carolina Department of Public Instruction, 2015
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