Eyes are a crucial source of expressive information. When looking at a picture of a person, people tend to devote the greatest attention to the eyes. The eye movement may reveal ``interest'', or ``attention'' of a person. Eye blinks may occur to keep the eyes wet, or to emphasize speech, or to show an emotional state-hesitation, nervousness etc. The shape, size, and color of the eyes provide cues in recognizing individuals. The modeling of eyes should include the eyeballs and eyelids and their actions.