| Clue | Source | Date |
|---|---|---|
| Verbal nudge found in each set of puzzle circles | LA Times Daily | 16 Aug 2016 |
| Arm wave or finger snap | New York Times | 18 Jun 2016 |
| Arm wave or finger snap | ||
| Verbal nudge found in each set of puzzle circles | ||
| Big wave, e.g | New York Times | 10 Jan 2015 |
| Big wave, e.g. | ||
| Poke on Facebook, say | ||
| It'll catch your eye | ||
| Yoo-hoo | ||
| Yoo-hoo | ||
| Psst, puzzlers! | ||
| Psst, for instance |