Related Clues:

• Snap one's fingers at, ultimately — that'll attract attention
• A call for attention
• On reflection, not all patient's spots call for attention
• Rider's way to attract attention, making this sound?
• Noise to attract attention
• Call attracting attention
• Notice me polishing small silver tray for starters
• Attention-seeking noise
• Here, furtively, is ship entering port
• Quiet attention seeker stops stealing bottles
• Quieter "Looky here!"
• "Hey ... over here!"
• 'Hey, I've got a secret ...'
• Cousin of "ahem"
• Conversation starter of a sort