Your baby can see right after birth. Babies can focus up to eight inches in front of themselves. By one month, they can see clearly up to three feet. At four months, distance vision is fully developed and babies can follow moving objects with their eyes.
At birth, babies prefer human faces and, as they grow, they will respond to facial expressions.
Your baby's hearing is mature by one month of age. At that time, he or she can recognize some sounds. At three months of age, your baby may begin to imitate some sounds and turn his or her head toward your voice.
Babies are very sensitive to noise levels. In fact, if your baby is in a very noisy area, he or she may "tune out" the sound and fall into a deep sleep. Your infant will become more social with time and will enjoy responding to other people.
At three months, your baby may use his or her face and body to communicate or "talk." He or she may imitate movements and facial expressions and will enjoy looking in the mirror. At seven months, your baby may use voice to express joy and displeasure and to babble. At 12 months, your baby may respond to simple requests and to the word "no." He or she may try to repeat words, and say "dada" and "mama."