Related Clues:

• Sibilant exclamation
• Call to share a secret?
• Verbal nudge
• Attention-getter, in the audience
• ''Hey, you!''
• 'Can you keep a secret?'
• On your toes
• Utterance during a play
• With eyes wide open
• Mentally responsive
• Subtle ''Over here!''
• It precedes 'Over here!'
• It may be red
• It may turn some heads
• Subtle attention getter