Related milestonesReacts to sudden noises or soundsBy 6 MonthsNot StartedListens and responds when spoken toBy 6 MonthsNot StartedRolls from back to tummy and tummy to backBy 6 MonthsNot StartedReaches for toys while on tummyBy 6 MonthsNot StartedWhile lying on tummy, pushes up on straight armsBy 6 MonthsNot StartedLooks at people and objectsBy 6 MonthsNot Started