Relier Pairs Infant Social DevelopmentVersion en ligne Match the concepts related to social development in infants! par shannie moore 1 Demonstrate engagement when being fed 2 Be wary of strangers 3 Engage in role play 4 Want to be independent 5 Start to smile 6 Might like to play solitary 7 Will offer their toys to share By 1 year By 1 year 4-6 weeks Newborn 18 months 2 years 2 years