From Edge of Darkness Wiki
Perfect Stillness
Your character has learned how to avoid the notice of her Keeper by remaining utterly motionless for hours at a time. Whenever she wishes, she can remain perfectly still for an entire scene. Except for breathing softly and silently, your character can stand without moving a muscle for an entire scene, even if the position she is in would be exceedingly uncomfortable for others. In addition to various other uses of this Merit, if your character remains stationary while hiding, all rolls to notice or locate her are made at a –2 penalty. This Merit is common among Fairest Muses, some of whom spent much of their time in Arcadia as living statues.