The angle you have hit the ball from will affect the way that your opponent is facing. As such, different parts of the table will be within his comfortable range of angles. The accompanying picture shows a ball hit by you from your backhand side, to the opponent's backhand side. Examine the comfortable range of angles that your opponent can hit from this position (Note - the comfortable range of angles is simply the area that your opponent will find it physically easiest to hit the ball, and thus most players are more likely to put the ball in this range).

