| Clue | Source | Date |
|---|---|---|
| "Let me think ..." sound | ||
| "I wonder ..." | Premier Sunday | 04 Apr 2021 |
| 'Let me think ...' | Jonesin | 02 Jul 2019 |
| 'Let me think...' | Wall Street Journal | 23 Aug 2016 |
| Contemplative comment | Newsday | 08 Jul 2016 |
| Thoughtful sound | Newsday | 25 Dec 2015 |
| Thoughtful sound | ||
| "I wonder ..." | ||
| Contemplator's sound | ||
| "Let me think about that ..." |