| Clue | Source | Date |
|---|---|---|
| They may write "r u ok?" | ||
| Participants in silent chats | Thomas Joseph | 24 Aug 2023 |
| Some distracted drivers | Universal | 02 Sep 2021 |
| Many 'LOL' typers | USA Today | 29 Jul 2019 |
| Many "LOL" typers | ||
| They send messages via phones | Irish Times Simplex | 13 Oct 2018 |
| Some distracted drivers |