body language vs indication

body language

noun
  • Nonverbal communication by means of facial expressions, eye behavior, gestures, posture, and the like; often thought to be involuntary. 

  • Deliberate, usually culturally influenced, nonverbal communication using the body through facial expressions, gestures, dance, mime, etc. 

indication

noun
  • Act of pointing out or indicating. 

  • Any symptom or occurrence in a disease, which serves to direct to suitable remedies. 

  • That which serves to indicate or point out; mark; token; sign; symptom; evidence. 

  • Discovery made; information. 

  • An declared approximation of the price at which a traded security is likely to commence trading. 

How often have the words body language and indication occurred in a corpus of books? (source: Google Ngram Viewer )