Exterior walls, windows and cold floors can be up to 70 degrees Fahrenheit warm, but thermodynamics are not in your favor. The body temperature of your body of 98.6 degrees radiates heat to these cold surfaces, making you feel cold. This phenomenon is known as the Cold-70 effect and explains why you can feel cold even in a 70-degree room.
There are several ways you can do it:
The further you get from cold surfaces, the better.
Isolate: Warm slippers are better than socks and certainly better than bare feet. Thicker slippers that cover the entire foot have a better R-value.
Duck and Blanket: If you can not avoid the Cold 70 effect, you should cover your head and neck with a hoodie a fleece product.
Another good choice is a sleeveless or hooded. Head and neck coverage is important. Increasing the R value in these regions is good thermodynamics, but also perception. Your head and neck are among the coldest parts of your body. As you feel warmer, your body's response to chills will be muted and you'll feel better.