Cats do display behavior that suggests they have a sense of humor. For example, cats may play with toys and engage in activities that seem to be done for fun, such as chasing a laser pointer or batting around a ball of yarn. Additionally, cats may show signs of amusement, such as twitching their tail or making a chirping noise. However, cats may also be serious and aloof, so it is difficult to say for sure whether cats have a sense of humor.