You don't need to. You're never cold exactly, just not warm.

[It is a unique experience to touch him normally, he just is. Not quite cold, not quite warm.]

I am sure we will have a raven following us all day. I'll keep you safe, I've managed as a human for a while now without dying.

[It is cold outside, but that's typical of winter. She nods.]

It's the wind that makes it really cold today.