*Oh my goodness, this is my daughter!*
gamine - [GAM-een] - noun
1. a neglected girl who is left to run about the streets.
2. a diminutive or very slender girl, esp. one who is pert, impudent, or playfully mischievous.
The gamine faerie giggled as she darted away and I fell flat on my face trying to chase her; she had tied my shoelaces together.