Related Clues:

• Discreet attention-getter
• Sound that may turn heads
• Subtler alternative to ''Yo!''
• Word repeated by Fat Albert
• It may precede the sharing of a secret
• Subtle "Yo!"
• "Hey!"
• ''Hey, pal, over here!''
• Sarge's order
• "Stop right there!"
• Informal conversation starter
• "Ahem!"
• Furtive call
• "Hands off!"
• "Over here!" noise