In Zlateh the Goat What details in the story support the inference that Aron is quick-thinking and brave?

From the text:

Suddenly he made out the shape of a hill. He wondered what it could be. Who had piled snow into such a huge heap? He moved toward it, dragging Zlateh after him. When he came near it, he realized that it was a large haystack which the snow had blanketed.

With great effort he dug his way through the snow. He was a village boy and knew what to do. When he reached the hay, he hollowed out a nest for himself and the goat. No matter how cold it may be outside, in the hay it is always warm. And hay was food for Zlateh.

Aaron had awakened hungry. He had eaten up his food, but Zlateh had plenty of milk.