Instead of: Don't leave my sight
Say: Don't go where you can't see me.
"When you ask some children who wandered off from their parents why they strayed away, they'll tell you they thought their parents could still see them," says Michelle Lubahn, health and wellness coordinator for Children's Hospital of Orange County, in Orange, California. That's why kids need specific boundaries. "If you're at the park, for example, you may tell them 'You can play on the swings and slides here. But if you want to go elsewhere, tell me and I'll come with you,'" says Lubahn.