Related Clues:

• Discreet alternative to “Yo!”
• (Over here!)
• Rider on way over here
• Sneaky 'Hey, you!'
• Sibilant hail
• (Check this out!)
• (Check this out)
• 'Yo - check this out!'
• 'Hey, you!' but quieter
• 'Look this way!'
• Discreet 'Hey!'
• Discreet 'Hey, you!'
• Sibilant summoning sound
• 'Over here!' whisper
• Hushed summons