Related Clues:

• ''Want to hear a secret?''
• Cry for attention
• Hushed "Hey you!"
• 'Hey, over here ...'
• Hushed ''Hey you!''
• Waver's word
• Sibilant "Hey!"
• Soft "Hey!"
• Sound before 'Your fly's open'
• 'Over here'
• Start of a whispered comment, perhaps
• Subtle 'yo!'
• ''You there!''
• 'Hey . . . over here!'
• Sibilant signal