Related Clues:

• Throat clearer
• Doubt-conveying interjection
• 'Hey there!'
• Whispered call
• 'Hey, Mac!'
• Sound before 'Yeah, you!'
• 'Excuse me...'
• 'Um, pardon me'
• Start of a break-in
• 'Hey. You. Yeah, you!'
• 'Hey, bud!'
• 'Hey, there!'
• 'Check this out!'
• 'Pardon me ...'
• 'Hey, buddy!'