Thanks for the query. This scenario is common among parents of kids who are slow to speak. Unless they observe other areas of "slowness" during early development, parents may hesitate to seek advice. Some may excuse the lack of talking by reassuring themselves that "he'll outgrow it" or "she's just more interested in physical things."
Spend a lot of time communicating with your child, even during infancy — talk, sing, and encourage imitation of sounds and gestures.
Read to your child, starting as early as 6 months. You don't have to finish a whole book, but look for age-appropriate soft or board books or picture books that encourage kids to look while you name the pictures. Try starting with a classic book (such as Pat the Bunny, in which your child imitates the patting motion) or books with textures that kids can touch. Later, let your child point to recognizable pictures and try to name them. Then move on to nursery rhymes, which have rhythmic appeal. Progress to predictable books (such as Brown Bear, Brown Bear) that let kids anticipate what happens. Your little one may even start to memorize favorite stories.
Use everyday situations to reinforce your child's speech and language. In other words, talk your way through the day. For example, name foods at the grocery store, explain what you're doing as you cook a meal or clean a room, point out objects around the house, and as you drive, point out sounds you hear. Ask questions and acknowledge your child's responses (even when they're hard to understand). Keep things simple, but never use "baby talk."