Related Clues:

• Subtler alternative to 'Yo!'
• Cat sound
• "Hey you!"
• 'Hey, buddy'
• Conversation opener
• Sound from an exam cheater
• "Want to hear a secret?"
• "Stop it!"
• Cry of pride
• Listen!
• Kitten's response
• Verbal jab in the ribs
• Kitten's comment
• 'You there!'
• Attention-getting call