In one sentence, describe what the following article is about:

If your cat is able to stay calm when you pick up the carrier, start moving around. Don’t go far at first—just pace around a little with the cat in the carrier. After doing this a few times, try taking the carrier outside and going for a short walk.Stop if your cat gets upset, and try again later. Try a shorter walk next time, and gradually increase the length of your walks until the cat gets used to it.

Summary:
Walk around with the cat in the carrier.