This challenge is not about taking a quick snapshot of your friend while they look away from the camera. .. .It is about creating a mood and giving the viewer a feeling about the subject without focusing on facial expression. The mood must be set with body posture, pose, and composition.
Your portrait MUST tell us something about the moment, the person being photographed, the mood. . . this portrait should help the viewer imagine a story about this subject - WITHOUT SHOWING THE FACE!!