Practice reading things out loud. Being able to read aloud effectively is essential for voice acting, especially if your job requires you to read from a teleprompter or script. Read books, magazines, or news articles out loud on a regular basis to get more comfortable with it. Spend a minimum of 30 minutes a day reading out loud. Practice enunciating words and work on your intonation. Try changing the sound of your voice as you read for an added challenge.