Pinkie pie is a loveable, hyper, party animal. She is shown to care about her friends deeply and loves to make the world smile with her silly, hyper, energetic personality. Though, I think she holds the most creepiness. In "Party of one", she is shown talking to her new friends, which are inanimate objects. While talking, she twitches every so often. This shows a creepy side of the usually happy pony.