1) Whenever possible shoot a group of at least 5 arrows.

2) Determine if your group is left, right, high or low of your point of aim.

3) Move your sight in the direction of your group.
                    If your group is  HIGH - Move your sight UP (FIG 2)
                    LOW - DOWN
                    If your group is RIGHT - RIGHT (FIG 1)
                    If your group is LEFT - LEFT