What does Buck do when he gets cold and Francois and Perrault kick him out of the tent?

When Buck gets cold after being kicked out of the tent by Francois and Perrault, he instinctively seeks warmth by curling up and digging into the snow to create a sheltered spot. He learns to adapt to the harsh conditions of the wilderness and relies on his instincts to survive. This experience reinforces his resilience and ability to cope with the challenges he faces in the wild.