Offer your baby the most unrestricted motion possible. There are differing opinions about how best to support an infant's physical skills. Magda Gerber, an expert on infant development and coauthor of Your Self-Confident Baby: How to Encourage Your Child's Natural Abilities from the Very Start, advocates putting babies in the least restrictive position possible. If you practice (as an adult) lying on your back and on your front, you will probably discover, like most babies do, that lying on your back offers you the most opportunity for movement.