He spontaneously smiles. Baby mimics sounds and gestures. He turns towards the source of a sound or voice. Baby gets attention by babbling. He makes different sounds for different needs.
All babies have their own internal developmental timetable.
If you have concerns about your baby's development, discuss them with his doctor. Coordination cues Your baby's ability to reach out accurately is a signal that his coordination is more keen. He now can transfer a toy or object from hand to hand. To reinforce this new talent while you change his clothes, encourage baby to transfer a favorite toy from one hand to the other as you put each arm in a shirtsleeve. With his increased control and dexterity also comes the ability and inclination to bring toys and other objects to his mouth.