Heather puts on a show of perkiness for the participants in her guided tours of Middleton, but in reality she's fairly laid-back. She's also perceptive enough to recognize Daria as a fellow realist, and drops the tour guide persona instantly once the rest of the Morgendorffers have gone off on their own agendas.

She paid Daria ten dollars to fix her Psychology term paper. Her friends jumped on the bandwagon shortly thereafter, and Daria immediately had a little business going.