Vita does that too, often, and Chestnut sometimes. They do it to warm up. Vita is ALWAYS cold. She sits up close to the lamp, UNDER the lamp shade, and just turns first one ear, then the other. I have felt her ears when she is not under the lamp shade and they are VERY cold to the touch! Vita also sleeps under the blankets as much as she can. Poor kitty is always cold.