| Clue | Source | Date |
|---|---|---|
| Nautical command to pay attention | USA Today | 26 Mar 2023 |
| 'Listen up!' | The Washington Post | 19 Sep 2020 |
| "Listen up!" | LA Times Daily | 19 Sep 2020 |
| "Listen up!" | Universal | 16 Apr 2020 |
| "Listen up, sailors!" | ||
| "May I have everyone's attention!" | Universal | 25 Sep 2018 |
| "May I have everyone's attention!" | ||
| Captain's "Listen up!" | Universal | 11 Apr 2015 |
| "Listen up!" | USA Today | 08 Mar 2015 |
| Captain's "Listen up!" | ||
| "Listen up!" | ||
| "Listen up!" | ||
| Captain's "Listen up!" | ||
| "Listen up!" | ||
| "Attention!" |