Scharf et al. Pediatrics in Review 2016#PIR52

Smiles spontaneously at pleasurable sight/sound

Source	Scharf et al. Pediatrics in Review 2016
Category	Social/Emotional
Expected age	4

No additional description of this milestone is available.

IDOB#5182000	Smiles spontaneously at pleasurable sight
IDOB#5183005	Smiles spontaneously at pleasurable sound