I found a puddle in the park

The park is coated in frosting, the vivid green grass hidden beneath its silvery white tips. As I walk across the lawn, the grass cracks underneath my boots. And then, silence. I look down. I see myself, blurry, dark, with little green specks across my face. I glance around, but no one seems to notice. Slowly I slide. My foot glides across the glassy surface. A giggle escapes me. A quick pirouette. A grin. My eyes see another pair looking at me, a smile in its corners. My feet touch ground, we walk on, strangers but for a single moment. And the mirror remains, hidden in the grass.