Get excited with your baby about all the things he does and the sounds he makes. You and your baby will enjoy this. Make a big deal out of little things, like when your baby makes a little sound while you’re talking to him. Let him know he is a great talker. Help him to learn to "talk" back and forth. When he coos at you, gently coo back. Wait and see if he "answers" you with another coo. If he does so, you should answer him. Do this with giggles, coos and other baby sounds.