Related Clues:

• Hissed "Hey, you!"
• Whispered message lead-in
• Subtle attention-getter
• Attention-getter in a library
• Classic chocolate drink brand
• "I want your attention!"
• Hissed "Over here!"
• Soft ''Hey you!''
• "Hey buddy, over here!"
• 'Over here ...'
• It precedes "Over here!"
• 'Over here, buddy'
• [Nudge]
• Audible nudge
• Subtler alternative to "Yo!"