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