| Clue | Source | Date |
|---|---|---|
| Greets, in a way | Wall Street Journal | 05 Jun 2021 |
| Acknowledges, in a way | Newsday | 12 Dec 2020 |
| Acknowledges silently | Universal | 09 Nov 2019 |
| Acknowledges silently | The Washington Post Sunday | 25 Mar 2018 |
| Acknowledges tacitly | The Washington Post | 23 Oct 2016 |
| Greets wordlessly | LA Times Daily | 01 Apr 2015 |
| Greets wordlessly | ||
| Greets wordlessly | ||
| Acknowledges tacitly | ||
| Acknowledges without a sound | ||
| Greets silently | ||
| Acknowledges nonverbally | ||
| Acknowledges with a head tilt | ||
| Gives a passing acknowledgment | ||
| Acknowledges in passing | ||
| Greets without speaking | ||
| Acknowledges wordlessly, in a way | ||
| Signals, in a way | ||
| Signals, as to an auctioneer | ||
| Greets silently | ||
| Greets nonverbally | ||
| Gives a silent 'OK' | ||
| Acknowledges wordlessly | ||
| Acknowledges nonverbally | ||
| Signals | ||
| Acknowledges in passing | ||
| Greets nonverbally | ||
| Greets, in a way | ||
| Acknowledges, in a way | ||
| Acknowledges, in a way | ||
| Signals, as to an auctioneer |