An interesting piece shared by gapingvoid:
From The Nonverbal Group:
Dr. Albert Mehrabian, author of Silent Messages, conducted several studies on nonverbal communication. He found that 7% of any message is conveyed through words, 38% through certain vocal elements, and 55% through nonverbal elements (facial expressions, gestures, posture, etc). Subtracting the 7% for actual vocal content leaves one with the 93% statistic.
gapingvoid adds: "Speak the truth; after all, your body’s going to whether you like it or not."