Related Clues:

• "Over here!"
• 'Hey ... over here!'
• Verbal elbow in the ribs
• Subdued attention getter
• Furtive ''Hey, you!''
• Sibilant summons
• ''Hey there''
• Alternative to 50-Across
• ''You there''
• Ear-grabbing sound
• ''Want to hear a secret?''
• Cry for attention
• Hushed "Hey you!"
• Hushed ''Hey you!''
• Sibilant "Hey!"