Possible Clues:

• One may be surprised when they go up - must be hairy!
• Some are penciled in
• Lines of hair above the optics
• Bad boys were part of one's features
• I have a look, they say - these may have been plucked for beauty
• A person's features I scan — sound sense!
• Arches either side of a bridge
• How the herbivore explains its diet on the face of it
• They're often plucked
• Look at hilltops that may be surprisingly elevated