In your baby's second month, he'll flash his first intentional smile. His movements become more voluntary and less jerky, and your baby gains control of his neck. He also starts batting and kicking at toys.
Your baby is listening intently and can turn his head in the direction of voices other than mom's, which shows awareness of sound-an important aspect of speech development, says Froma P. Roth, Ph.D., a professor in the hearing and speech sciences department at the University of Maryland.
For more information about your baby's milestones, check out these Baby Steps.