Mabel is an optimistic, fun, and energetic girl full of spirit. She is an optimist who skips through life with a bright smile and an assortment of extremely colorful knit sweaters. It is her outgoing personality and fearless curiosity that comes in handy when Dipper needs help solving a mystery, even if she isn't always aware of her silliness. Despite her cheerful attitude and ability to be able to look on the bright side, she can occasionally get her feelings hurt. Mabel avoids lying and is a terrible liar, often blurting out whatever it is about which she is trying to lie. Unlike her twin brother, her bark is deep and intimidating like their father.