Toasting brings out a nuttier flavor of pine or other nuts. A good doneness test, along with color, is when you can smell the toasted aroma.
To toast nuts, sprinkle in an ungreased heavy skillet. Cook over medium heat 5 to 7 minutes, stirring frequently until nuts begin to brown, then stirring constantly until nuts are light brown. Remove them immediately from the hot pan so they don't continue to toast and become too dark or scorch.