"...uh, yeah. She scrapbooks. She also mini-golfs, water balloons, knits, makes pillow forts, and throws things at me if I don't go outside enough."

Mabel has an insane amount of energy. Dipper knows her better than anyone and still doesn't understand it.

"Yeah, I guess." Maybe not job, but certainly calling. He has to try. He can never leave a mystery alone. "I'm good at this stuff."