Related Clues:

• 'Hey, pal'
• Muted call
• Quiet "Check this out!"
• Call in place of a nudge
• Subtle summons
• 'Hey, you there'
• Sly 'Hey!'
• Secret spiller's intro
• Vowelless attention-getter
• 'Hey, mister'
• 'Ahem' relative
• 'Yo, dude, what's the answer to #7...'
• Hushed 'hey!'
• 'Hey, look over here!'
• Attention-getting utterance