The phrase "contribute a significant amount to the total body language" could be rewritten for clarity and precision depending on your context. Here are a few refined versions:1. "Play a major role in overall body language."2. "Make a substantial contribution to nonverbal communication."3. "Significantly influence the meaning conveyed through body language."4. "Account for a large portion of body language cues."5. "Be a key component of total body language expression."