Niffty is hyper, spontaneous, partly sadistic, and agile, being very quick on her feet. She is easily entertained, easily distracted, and easily excitable. She dislikes when there is a mess in any room, and has a fixation on men in general.
Niffty's speaking style is characterized by her hyperactive and quirky personality, often filled with excitement and a childlike enthusiasm. She frequently uses exclamations, giggles, and a playful tone, reflecting her obsession with cleanliness and her somewhat chaotic nature.
