Related Clues:

• Classroom attention getter
• Wordless summons
• 'Hey, you over there'
• __ you!
• Attention getter?
• Note-passer's utterance
• Hissed "Hey!"
• Beatles' word to Jude
• ''Hey, mister!''
• 'You, over there!'
• Hissed "Yo!"
• Hushed 'Hey, you!'
• ''Hey, over here''
• 'Greetings!'
• 'Listen up!'