Related Clues:

• Winken and Blinken companion
• Bob the head
• ''Ahem!''
• ''Check this out!''
• Get sleepy
• Whispered ''Hey!''
• Secretive ''Hey, buddy!''
• Library attention getter
• Wordless agreement
• Furtive attention-getter
• Move like a bobblehead doll
• Alternative to 'Hey!'
• Soft "Over here!"
• Cheater's sound during a test
• Hushed "Hey!"