u can move your sight pins left and right and up and down. Move them toward the arrow impact point.
Thats the way you do it
look through your peep and focus on the target. When the pin lines up, release! It ain' t that hard.
Thats the way I used to do it, and it got me in a world of trouble - drive by shooting, hung low - can' t move - panic, panic, panic[X(]
The best way IMO is to allow the release to come by surprise, by the use of back tension. Its hard to peek when the shot just explodes on you[8D]