Whether it’s eating breakfast for lunch, learning Celtic step dancing, building birdhouses from popsicle sticks, showing off your shark tattoo, or speaking with an Australian accent on Tuesdays, all of these things can express your individuality, meaning what makes you unique.
Use the noun individuality to refer to the sum total of characteristics that make up a particular individual. Individuality consists of the good, the bad — and even the crazy — that make a person distinct. The word can be describe the state or value of being unique, like the members of a group whose individuality makes for lively discussions, or a having your car painted a special color — neon green, perhaps? — to express the owner's individuality.