Related Clues:

• Visual pair
• 'Mine -- have seen ...'
• The Guess Who's ''These ___''
• '___ Wide Shut'
• Colons in emoticons, often
• Spotters?
• Argus’ 100
• Blinkers, at times
• Watches suspiciously
• Has a close look at
• They can be crossed
• Colon, in an emoticon
• Good lookers?
• Sizes up
• Covets, perhaps