Gyrfalcon's Keep Would you just come home

"Well, it is not science or anything," Wraen was not sure, how to reply, because explaining, how to roll in the snow, roll in anything was a general knowledge. One was born with it and it was the first kind of moving around one learned. But there were all kinds of people in the world - perhaps - this one was truly clueless or had a different understanding of what Wraen had been talking about. 

Therefore she put some distance between them, chose the spot, where the snow was the deepest, dove in the heap head and one side first, then rolled on her back and looked from that position at the stranger. "Like this," she said. "Until it's nice and clean again."

The funniest wolf-rolling-in-snow image I found on google for an illustration -