You can use it in either of the ways:
Keep it aside in boiling water overnight and let it be covered. In the morning, heat it up quickly and consume it raw.
You can even cook in the morning by boiling it in water for about 25-30 minutes. Add milk, honey or sorghum or any other sweetener of your choice and garnish it with dried fruits and nuts. You can also cook delicious upma or poha with these oats.