Related Clues:

• Bedtime "Land"
• Subtler alternative to ''Yo!''
• OK sign, maybe
• It may precede the sharing of a secret
• Subtle "Yo!"
• "Hey!"
• Indicate uh-huh
• ''Hey, pal, over here!''
• Informal conversation starter
• Signal at Christie's
• "Ahem!"
• Furtive call
• Nonverbal 'yes'
• "Over here!" noise
• 'Over here!' noise