Writers select only a few qualities to attach to a character, main or minor. Hair and eyes are popular features, but there are so many other qualities that can help define a character as unique and help a reader connect with that individual no matter how short the involvement with the individual is in the reading.
- Glasses that slide down the nose or enlarge the eyes when lenses are looked through directly by other characters.
- Profuse sweating: sweaty hands, beading above the lip.
- Feet that slap the floor with every step.
- A habit of rubbing an ear or stroking a brow.