If your cat refuses to move while on the leash, it's essential to remain patient and avoid forcing movement, as this can lead to stress or fear. Instead, encourage your cat with positive reinforcement, such as treats or gentle coaxing, to create a positive association with the leash and harness. Sometimes, simply allowing your cat to sit and observe their surroundings can gradually build their confidence. Always start with short, positive experiences and gradually increase the duration as your cat becomes more comfortable and curious about exploring outdoors.