From an early age, it's important to explain to girls that their private parts are just that: private, and not for others to touch. Chrestman advised differentiating between private and shameful, however. "You don't want them to feel embarrassed." Young girls can also understand saying "no" to unwanted physical contact. Explain that they don't have to hug anyone, even Grandma. They should also ask before touching a playmate and respect "no."