Related Clues:
- Whispered "yoo-hoo"
- Whisper for attention
- Alternative to a tap
- Subtle "Hey, you!"
- Sibilant sound to get someone's attention
- Covert summons
- Secretive "over here"
- 'You ... over there ...'
- Bad attention-getter in a crowded bar
- Sound that turns some heads
- Soft "hey, you"
- Clandestine attention-getting sound
- Sound heard by an exam proctor, say
- 'Hey, over here'
- Quiet sound that can mean "Look here!"