How can I effectively and humanely shut up a cat when it is being too noisy or disruptive?

To effectively and humanely quiet a noisy or disruptive cat, try providing them with toys or activities to keep them occupied, creating a calm environment, or using positive reinforcement training techniques. Avoid yelling or punishing the cat, as this can cause stress and worsen the behavior. Consulting with a veterinarian or animal behaviorist for personalized advice may also be helpful.