How do you act like The grudge?

To act like "The Grudge," embody a sense of eerie stillness and an unsettling presence. Move slowly and deliberately, often with an unnatural posture, while maintaining a haunting gaze. Emphasize the iconic raspy sound or whispering that signifies the character’s malevolence. Lastly, create an aura of dread by appearing unexpectedly and vanishing just as quickly, leaving an unsettling impression.