Tutorial building the dragon model part 5

You will select faces where the eyes shall go and delete them. Move the points into the shape of the eye.

You will select the edges of the eye socked. An easy way to do this is to hold down alt while clicking.
You can extrude the edges and scale them to form an eye. Fill in any spaces.

You will also do the same thing for the nose by selecting the face where it will be, deleting it and extuding it into the shape of the nose.