Jillian is a nervous and fidgety creature who is fuelled by caffeine. She's a hard worker, and tends to work on projects for very long stretches at a time without breaks, if she doesn't just finish the entire project in a single sitting. While she works she has a tendency to reach for small, easy-to-eat snacks and keep them on a constant feed until she runs out-- like sunflower seeds or potato chips, though she prefers things on the crunchier end of the spectrum. She has a playful, fun-loving side, but her sense of humor/cultural references are quite outdated, often referring to old memes from before meme was a commonly used word, from the dot-com bubble era of the Internet, like YTMND or Homestar Runner.