Not all sounds are visible on the lips. Therefore, you will have to learn to guess at many words. This is not always as difficult as it sounds as the context of a sentence will often provide you with clues as to the correct word. Speechreading works best if you have some hearing left. Combining even limited hearing with auditory clues will greatly aid your speechreading.
Personal distance performs the same function.
How to Practice Speechreading Work with a partner if possible Talk about real life things - even in practice. Using nursery rhymes for practice will not prepare you for true scenarios as much as talking about current or daily events. Practice viewing the speaker from various angles and distances. Speechread for overall content rather than individual words, because you will not understand each word by itself, and if you try to, your frustrations will interfere with your speechreading. If you cannot fill in the missing pieces, ask the speaker to reword the entire sentence because whole sentences are easier to speechread than single words.