Player Waist Changes Direction Based On The Direction The Player Is Moving?

How Would I Move The Players Waist To Face The Direction The Player Is Moving

An Example Would Be: If The Player Starts Moving To The Right The Waist Would Start Rotating To The Right No More Then Say 70 Degrees At Something Like A Quart Curve. Then As Soon As The Player Stops Moving Or Switches Direction The Waist Will Correct Itself.

I Tried To Make A Gif Of Exactly What I Am Trying To Achieve But Never Got Anything I Liked So You Will Just Have To Try To Take My Word For It, Thanks For The Help.