Related milestones
While lying on tummy, pushes up on arms

While lying on tummy, lifts and holds head up

While lying on back, attempts to reach for a toy held above their chest

While lying on back, keeps head centered to watch faces or toys

While lying on back, visually tracks a moving toy from side to side

Enjoys a variety of movements (at 0-3 months)

Moves legs and arms off of surface when excited
