Spends most of the time sleeping and lying down. Starts to develop head and neck control. Can roll over. Development of senses and vision. Responds to sounds and external stimulation.
Roll over (7-12M)
Development of fine motor skills. Adept at rolling all the way over. Can sit on his own without support. Explores surroundings and responds to name. Learns more about the world around them.
Walk alone. Constantly learning about themselves and their surroundings. Actively explores their environment with all of their senses and is very curious about what things are and how things happen. Utters words that make sense.