Right to left enough finger on the trigger" you will shoot "to the left" of the target. "too much finger" will cause you to shoot to the "right of the target". "perfect trigger finger" will cause you to " pull straight back" and shoot dead center!
Hobo Symbols: Dating back to the Depression, when many people were homeless and on the move, this code of signs were used be Hobos to communicate good spots to stay & places to avoid. "Here is the place!