It is a wonderful thing to be able to communicate without raising your voice. Visuals allow you to do just that. Visuals can communicate without the sound of impatience or irritation in your voice. If you are in a loud or busy environment, visuals can communicate consistently and calmly. Even more importantly, visuals speak longer than words. Visuals continue to communicate long after the spoken words have disappeared. Once again in noisy and/or busy environments this feature of permanency that visuals offer can be a blessing to children who take longer to process or are easily distracted.
Visuals: calm, consistent, effective communication.