Bristol Palin calls herself "naturally shy" and believes that personality trait will carry over to what she'll be wearing as a contestant on 'Dancing With the Stars,' she tells PEOPLE.

The teen mom predicts she'll be the "most dressed" contestant and vows to have the "most modest outfits" in the cast. Why would she limit herself on a show that's notorious for skimpy outfits? "Because that's who I am," she says.

The 19-year-old [actress? aspiring reality star?] wants to set a good example for her 20-month-old son, Tripp. "I see this as something that's fun and that's positive and I'm going to be able to show my work ethic to people out there."