Shaping your finish

The shape of your finish is a good indication of the direction you've hit your shot.  When you see a higher finish with the hands and the club across the back of the head, this usually indicates a draw.  Conversely, when the hands finish lower and to the left with the club positioned higher than the hands the ball will typically fade. 
Rehearsing your finish to shape your shot is a good way to get a feeling before you execute.  Below is a video from my youtube channel, timcusickgolf, on shaping your finish to play specific shots.

Shape your finish