From A Weak to Confident Communicator - 30 Day Challenge
If you are weak in communication, you might feel conscious to speak. Such anxiety is common in people whose native language isn't English. You might worry about other people judging you about your grammatical mistakes or the bad structure of your sentences.
You can solve that problem by practicing mentally. A study performed on athletes showed that mental practice has benefits close enough to real practice. So let's make the best out of it.
Today, you will practice mentally to improve on an area that you are lacking. It could be lacking the ability to speak in a flow, bad grammar, short sentences, filler words or anything else that you think you can do better. Practice mentally without uttering a word and that serves as real practice.