A disguise is a method used to alter one's appearance or identity, often to conceal who they really are. People use disguises for various reasons, such as to protect their privacy, to play a role in theater, or during events like Halloween. Disguises can include costumes, makeup, masks, or even changes in clothing style. In addition to personal use, disguises are often employed in film and theater to help actors portray different characters convincingly. They can also be used in magic tricks or by detectives to gather information without being recognized. Overall, disguises serve to create a different persona or to blend into a specific environment.