Related Clues:

• "Hey ... you"
• Discreet "Hey, you!"
• “...over here!”
• Alternative to a shoulder tap
• 'Hey you!' whisper
• Quiet “Hey!”
• Surreptitious “Hey!”
• Ship in empty port attracts attention
• Subtle 'Hey!'
• Whispery 'Hey! Over here!'
• Subdued ''Hey, you!''
• Stealthy summons
• Rider on way over here!
• Sound that gets an exam proctor's attention
• Surreptitious sound during an exam