Activities That Can Help Reach This MilestoneAction SongsMark as playedPlay Ball!Mark as playedLight MovesMark as playedSmooth Tummy RideMark as playedSightseeing with BabyMark as playedSit On UpMark as playedSit Up StraightMark as playedLean and ReachMark as playedFloor ExplorerMark as played