Related Clues:

• Across-the-room signal
• Auction indication
• Hissed nudge
• Furtive "Yo!"
• ''Over here''
• Land where Cain lived
• Alternative to 'Yo!'
• Furtive ''Hey!''
• Soft attention getter
• One way to agree
• Classroom attention getter
• Wordless summons
• 'Hey, you over there'
• Subtle greeting
• Slight downward movement