Related milestones

Moves legs and arms off of surface when excited

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

Coos and smiles

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

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

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

Quiets or smiles in response to sound or voice

Turns head towards sound or voice

Shows interest in faces

Makes eye contact