Related Clues:

• Interruption
• 'Hey, you!'
• 'Want to hear a secret?'
• Call to attention
• 'Um, excuse me'
• Throat-clearing sound
• 'Hey!'
• 'Excuse me'
• 'Yoo-hoo!'
• Conversation starter
• 'Pardon me'
• 'Yo!'
• 'Look here!'
• 'Psst!'
• Attention-getter