Hay Lin is something of a free spirit: she's absent-minded, but at the same time extremely creative, talented and insightful when it comes to people around her. She loves to draw, paint, and sketch. It is no surprise that her favorite subject in school is art. She has a sense of humor rivaling that of Irma's. She can be considered a slight comic-alien geek at heart because of her love to collect comics and alien collectibles. She enjoys just about anything related to science fiction, air, or art. Her quirky style spills into dialect as well, with idiosyncratic expressions like "cosmic", "spacious" (in place of more mainstream options like: "cool") and "weirdific".