Another experiment from Spirit of Drawing. Close your eyes and sense your face from the inside. Then, touch your face, feeling it from the outside with your fingers. When you are ready pick up your pen/pencil and draw your face with your eyes closed.
I made two eyes closed drawings with charcoal.
Looking into a mirror, draw your self-portrait. Brush pen.
Charcoal. Kinda a grim, unflattering portrait but I felt really crabby yesterday.