Whether formal or informal, public speaking is an art and craft. There are Six Keys that can change the way you speak. Learn to become effective and powerful. Remove vague words and make it easy to understand. Being clear is not a matter of words or sentences.
Clarity comes from within.
The origin of the thought and idea must be pure, simple and clear. Be Prepared Make a deliberate, active and conscious effort before you speak. Don't make things unnecessarily complicated. You must convey feeling and purpose when you speak. This quality comes from your head and heart.