Stick your tongue out, smile, and make other visible expressions for your newborn baby to study, emulate and learn from. You can also hold a favorite toy in your newborn's face for them to focus on or follow or shake a rattle for them to follow. Playing is how infants learn to socialize and communicate, and they will learn by interacting with you. Let your baby also spend time on their tummy when awake to help them strengthen their necks and shoulders.