He held his hands out, as if warming them by a fire.

Safe in the kitchen, all four of them warmed themselves by the fire.

I stood warming myself by the fire, and for a time none of us spoke a word.

Therefore, they try to warm themselves by the fires of reality.

He returned to camp and warmed himself by the fire.

She suspected he had, and found herself quite warmed by the thought.

He holds out his hands as if to warm them by the flames.

Once there, he made a show of warming his hands by its flames.

But he smiled, and even at that distance she felt warmed by his eyes.

The globe has probably warmed by between 0.5 and 1 degree over the last century.