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 Might like to play solitary 3 Want to be independent 4 Start to smile 5 Will offer their toys to share 6 Be wary of strangers 7 Engage in role play 4-6 weeks By 1 year 18 months Newborn By 1 year 2 years 2 years