The goal line signal can be useful to communicate to all players that the goal line option will be taken.If the signal is made, the thrower must move to the goal line.However it is a voluntary signal. The intended thrower may still establish the pivot at the goal line even if they do not signal the goal line option.The defence may ask the intended thrower if they intend to choose the goal line option and it is good spirit to provide a response (via hand signal), however it is not required.If the player is establishing a pivot point at the goal line the player may carry the disc at a constant or variable speed, and must move at walking pace or faster.The player must put the disc into play either at the spot of the disc or on the goal line, not in between.