Make your location visible with brightly colored items, fire, smoke, stamping words out in the snow, etc. Use a whistle, firearm, shouts, etc. Shelter, warmth, and water are more important than food. Much of your body heat can be lost by sitting on a surface that is wet or colder than you. Outdoor Clothing Layer Your Clothing.
Layers are far more versatile than one heavy coat.
They allow you to add or subtract insulation depending on activity level and weather conditions. Keep Clothing Dry. Remember, clothing can get just as wet from perspiration as it can from the elements. Never use cotton as any essential part of your clothing. It retains little or no warmth when wet.