Child DevelopmentHome / For Parents / Family and Health Resources / Child DevelopmentLearn about developmental milestones and the skills and behaviors your infant or child should be exhibiting at two months, four months, six months—all the way up to five years of age. 2 MonthsBegins to smileTurns head toward sounds 4 MonthsBegins to babbleResponds to affection 6 MonthsResponds to own nameBrings things to mouth 9 MonthsMay be afraid of strangersPlays peek-a-boo 1 YearCopies gesturesMay stand alone 18 MonthsScribbles on his ownDrinks from a cup 2 YearsFollows simple instructionsBegins to run 3 YearsTakes turns in gamesNames a friend 4 YearsCan say first and last nameRemembers parts of a story 5 YearsWants to be like friendsSays name and address