Signs a cat may be ready to try walking outdoors include showing a keen interest in the outside by frequently watching through windows or scratching at the door. Additionally, a cat that demonstrates curiosity and boldness, rather than fear or anxiety, when introduced to new situations or environments may be more receptive to outdoor walks. Successfully acclimating to a harness and leash indoors without signs of stress is another indicator of readiness. Observing your cat's temperament and comfort with the harness can guide you in deciding if they are prepared for outdoor adventures.