Related Clues:

• Barely audible "Hey!"
• Quiet attention-seeker
• Sound from a would-be test cheater?
• Head-turning "over here" sound
• Revelation preceder, at times
• "Look over here" sound
• 'Hey, get a load of this'
• "Hey, get a load of this"
• Subtle alternative to 'Hey you!'
• Soft 'Hey!'
• Soft "ahem" alternative
• Library attention-getter
• "Can you keep a secret?" sound
• Wordless whisper
• Whispered version of ''Yoo-hoo!''