Related Clues:

• Subtle ''Over here!''
• It precedes 'Over here!'
• It may turn some heads
• Subtle attention getter
• "Hey, you!"
• Furtive whisper
• [Look over here!]
• Sotto voce call
• Head turner
• Subtler alternative to 'Yo!'
• "Hey you!"
• 'Hey, buddy'
• Sound from an exam cheater
• "Want to hear a secret?"
• Listen!