Choose a sound that you have heard your child babble frequently. Repeat this sound many times during the day, using it in words, songs, or babbling it yourself. For example, “Ba” is a common early sound – sing “Bah Bah Black Sheep,” play with a ball, sit in a box, drink from a bottle, etc. Stress the sound as you talk about what you are doing during the day.
Babies under 6 months respond to a high-pitched voice. By 4 months, they are noticing the individual sounds you make and repeating them often. They are learning how vowel and consonant sounds are used together. For children over 6 months, avoid using “baby talk” but make your voice very rhythmic. After 6 or 7 months, your child may make a game of imitating your sounds of speech.