Related Clues:

• Note-passer's sound
• 'Anybody home?' call
• "You there"
• Whispered cut-in
• Whispered interjection
• Sly attention-getter
• "Hey, you with the face"
• "Yo, over here"
• 'Come over here!'
• 'Hey ... over this way!'
• Hissed attention-getter
• Sibilant "Ahem"
• Soft call
• Subtler 'Hey!'
• Surreptitious utterance