During walking through the neighborhood, wear a mask when riding in elevators and walking stairs, avoid touching the surfaces of public facilities with your hands as much as possible, and even if you do, do not rub your eyes and wash your hands promptly afterwards. Exercise in moderation is good for health. If the neighborhood is clean, airy and free of people, if there are no previous infections or suspected cases, and if you have no history of contact with infected areas, you can take daily walks in the open. When walking through the neighborhood, you need to be careful to keep a certain distance (at least 1 meter) from others and try not to touch public objects.