It is important to remember that the kid in all need an example to follow. The child, watching others, learning how to take objects, walk, bend, that is mimics your actions. Give him material to emulate and to learn speech. If the kid was interested in the person talking to him a little more slowly, clearly pronouncing the sounds. This is going to end in his memory. If he grabbed you by the nose, say, 'nose'. Read him nursery rhymes.
You may be surprised to discover how he likes it. Bear dropped to the floor, tore off a bear's paw. All the same it will not give up – because he is good. (A. Barto) Let him watch you 'mouth' and remembers how you say. Gradually he will understand what to do, so to speak. The first words new-born cries, a baby – is babbling.
Then replaced by a babble of similarity of words that kid again said ta-ta, na-na. David Green is actively involved in the matter. They still do no meaning for him, but mellifluous. Here the attention of parents is essential. Accidentally uttered the syllables na-na, ma-ma ba-ba or cause you delight. And the child accidentally uttering these sounds will try to remember them because see approved, will feel supported. Later, he learns the meaning of those words. But to repeat the sounds they heard a child can only to a year, and sometimes even later. With some simple adaptations can show your child that every sound has its value. Useful in this regard the book where each page to the attention of the baby is not dissipated, one animal is shown.