Offenses tend to use the play-action pass specifically to make the free safety expect a run play, which would draw him closer to the line of scrimmage, and reduce his effectiveness as a pass defender. Furthermore, quarterbacks often use a technique to "look off" a free safety, by looking away from the intended target receiver's side of the field during a pass play, with the intention to lure the free safety away from that side of the field. This phenomenon often tests how effective a free safety's savvy and athleticism are at defending long pass plays.