Uncover the Secret to This Attention-Grabbing Whisper Crossword

1. Sound used to alert someone quietly
2. Two quick hisses
3. A sibilant exclamation
4. Hushed attention-getter
5. A secret signal
6. Whispered interjection
7. Signal to be quiet
8. A discreet way to get someone’s attention
9. Short, sharp exclamation
10. Sound made by pressing finger to lips.