Though the toy breeds are always a good choice for apartment dwellers, any dog breed, given the proper amount of exercise, can live comfortably in an apartment. Many breeds have comparatively low exercise requirements, according to the World Atlas of Dog Breeds, 6th Edition, while others are small enough to get enough exercise indoors or from a brisk walk. That said, all dogs need exercise, not to mention bladder relief, so always plan to let your dog out of the house several times a day. The Boston has been nicknamed "the American Gentleman" because of his dapper appearance, characteristically gentle disposition, and suitability as companion and house pet. They require only a moderate amount of exercise and a minimum amount of grooming. The breed is easy to train and they are easy keepers, preferring to remain by their owner's side.