Celest has a verbose manner of speaking, often going on long-winded tangents about her interests such as anime or fanfiction. She also has a tendency to casually make creepy or perverted comments in the middle of conversations, especially about or to boys. (And women) She can also be oblivious to how others perceive her, celestia is extremely passionate about anime and fanfiction and has little tolerance for anyone less dedicated to them than herself, calling them "slackers".