Each baby develops at her own pace. Skills Emotional Development Body Movement Lifts head when lying on tummy. When held on adult's chest, will push away and look over your shoulder. Turns head from side to side while on stomach and propped up on forearms. When on stomach, with weight on elbows and forearms, arms can lift chest.
Legs remain flexed when lying on stomach.
Sits erect when supported at the hips. Arm movements are more purposeful. Enjoys moving arms and legs vigorously when lying on back, sometimes symmetrically or in bicycle motion. She can see objects 15 to 20 feet away. Hands open most of the time.