D. Looking down while you are talking
I believe if someone is looking down while you talking, it indicates they do not want to hear what you are saying or they have already refused your proposition.
Hello there,
Your correct answer would be "remain still".
The reason why I say this is because when muscles are contracted, this mean's that they are not constantly exercising. This would be that they would stay the same.
Hope this helps.
~Jurgen
Around 18 minutes for nfl players