"It's not a bad thing to face strange surprises calmly," she says. "But if this happens to you that often, that's probably not a great thing. Do you have...family? A mother? Will someone be worrying where you've gone?"

She doesn't take it for granted that a lone child must have parents somewhere. Such is rarely the case where she comes from. As an afterthought, she tugs her canteen off her belt and offers it out. "Thirsty? It's clean water."

Aqua cola. The best she has to offer.