| Discreetly acknowledges | 
            New York Times | 
            13 Apr 2025 | 
          
          
            | Acknowledges tacitly | 
            New York Times | 
            04 Oct 2024 | 
          
          
            | Says "OK" to nonverbally | 
            Premier Sunday | 
            20 Aug 2023 | 
          
          
            | 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 without a sound | 
             | 
             | 
          
          
            | Acknowledges tacitly | 
             | 
             | 
          
          
            | Greets silently | 
             | 
             | 
          
          
            | Acknowledges with a head tilt | 
             | 
             | 
          
          
            | Acknowledges nonverbally | 
             | 
             | 
          
          
            | Gives a passing acknowledgment | 
             | 
             | 
          
          
            | Signals, in a way | 
             | 
             | 
          
          
            | Greets without speaking | 
             | 
             | 
          
          
            | Acknowledges in passing | 
             | 
             | 
          
          
            | Acknowledges wordlessly, in a way | 
             | 
             | 
          
          
            | Greets silently | 
             | 
             | 
          
          
            | Signals, as to an auctioneer | 
             | 
             | 
          
          
            | Greets nonverbally | 
             | 
             | 
          
          
            | Acknowledges wordlessly | 
             | 
             | 
          
          
            | Gives a silent 'OK' | 
             | 
             | 
          
          
            | Acknowledges nonverbally | 
             | 
             | 
          
          
            | Acknowledges in passing | 
             | 
             | 
          
          
            | Signals | 
             | 
             | 
          
          
            | Greets nonverbally | 
             | 
             | 
          
          
            | Greets, in a way | 
             | 
             | 
          
          
            | Acknowledges, in a way | 
             | 
             | 
          
          
            | Signals, as to an auctioneer | 
             | 
             | 
          
          
            | Acknowledges, in a way | 
             | 
             |