Noses are frequently overlooked when describing characters, but they can conjure up an image faster than almost anything else.
Consider these descriptions and what images come to mind as you read them:
He had a bulbous nose with purple veins;
His nose waggled when he spoke, as if it had a mind of its own;
Her nose was fleshy and soft, and turned down at the end;
Her nose appeared like it was taken off a parrot and I couldn't seem to stop staring at it;
His nose was patrician; perfectly shaped;
His nostrils flared when he spoke;
His nose seemed to have a golf ball shaped lump at the end of it, which reddened as the day wore on;
Her nose was so flat, her nostrils seemed to be lodged in the skin just above the lip;
Her nose turned up at the end, which always made her appear haughty and conceited;
He was much taller than me and I always seemed to be staring up his nostrils when he drew near.