They are having soup, and the stranger notices steam rising from his bowl. He sees the little girl blowing on the soup to help it cool. He lightly blows on his own bowl, and the steam drifts away.
While they savor their soup, a stranger notices steam emanating from his dish. The little girl is seen cooling her soup by blowing on it. Similarly, the stranger lightly blows on his own bowl, causing the steam to disperse.