The special thing about redheads is of course first of all the hair. The hair comes in many nuances, from the almost blonde hair with a touch of orange in it, to the darker red colors all the way to maroon.
Then there is the skin. Redheads usually have very pale skin, some even white as milk or snow. Best of all is it when they also have freckles. Some have just a few cute freckles on the nose, others have them all over the body.
Some people say redhaired girls are especially fiery in bed and have a hot temper. My personal opinion is it depends on the girl. Some are hot tempered and others are calm and shy.