Related Clues:

• ''Who goes there?'' asker
• Assessor
• Staring sort
• Soldier on guard
• One just left of center?
• Museum employee
• One who watches
• Once-over giver
• One who stares
• Flirt, maybe
• Ogling person
• Military lookout
• One making a visual assessment
• One checking out?
• One who's 'just looking'