This is how you sign Warm in American Sign Language.

How to sign

To sign "warm" in American Sign Language (ASL), position a loosely closed fist in front of your mouth, then gradually move your hand away while slowly opening your fingers.

To sign "Warm" in American Sign Language (ASL), start with a loosely closed fist near your mouth and then move your hand away from your face, gently opening your fingers as you go.