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