Observe the child in face-to-face play situations with the adult. Watch the infant’s face when the adult looks up to talk to another or changes her facial expression.
Play face-to-face smiling games with the infant. Then stop smiling and change expression.
The infant’s facial expression changes as the adult’s facial expression changes. The infant makes vocalizations to get re-engagement.
Children and adults both learn to read each other’s cues from facial, body, and vocal expression. If adults do not give clear, readable cues the infant may have a harder time determining affect. Encourage parents to give clear cues with facial expression, vocal intonation, and gestures.
 North Carolina Department of Public Instruction, 2015
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