Related Clues:

• Sound from a test cheater?
• "I've got a secret to tell you"
• 'Hey, kid, check this out ...'
• Start of a library conversation
• Hello!
• Attention-attracting sound
• Quiet "Over here!"
• Hushed head-turner
• Alternative to "ahem"
• Casual conversation starter
• Secretive attention-getter
• Subtle call for attention
• Alternative to an elbow
• Test cheater's sound
• Relative of 'Hey, ma'