1. Use the correct tone and word choice, align emotions with voice
  2. Develop a vocal style by learning from other speakers and find one that you like
  3. Look into the vocal mirror, evaluate your own voice through video. Take notes on the things you like and the things you don’t like, Build self awareness
  4. Read children books, tend to inflect way more with children’s books
  5. Practice creating videos to improve communication skills.

source: https://www.youtube.com/watch?v=YyWZmdkPfDM