Historical clue formulations

• Jerk — 2026-02-27
• Involuntary movement — 2026-02-24
• Behavioral quirk — 2026-02-04
• That little thing you do? — 2025-09-04
• Nervous twitch — 2025-07-17
• ___-tac-toe — 2025-01-01
• Recurring quirk — 2024-12-13
• Twirling one's hair, e.g. — 2024-04-28
• Game piece? — 2024-04-10
• Personal quirk — 2023-10-11
• Involuntary movement — 2023-08-01
• Start of X-X-X — 2023-02-16
• ___ Tac (mint) — 2023-01-22
• Part of X-X-X — 2023-01-08
• Idiosyncratic behavior — 2022-09-28
• Idiosyncrasy — 2022-08-12
• The first "O" of O-O-O — 2022-05-03
• Idiosyncrasy — 2022-01-18
• ___-tac-toe — 2021-11-01
• Behavioral quirk — 2021-08-07
• The first "X" of X-X-X — 2021-05-03
• Personal quirk — 2021-02-10
• Wrinkling one's nose, perhaps — 2020-07-02
• Idiosyncrasy — 2020-06-14
• Idiosyncrasy — 2020-05-22
• Little bit of personality — 2020-04-16
• Nervous habit — 2020-03-25
• Poker game tell, perhaps — 2019-07-26
• Idiosyncratic habit — 2019-04-16
• Little jerk — 2018-12-19
• Part of XXX — 2018-09-19
• Periodically tugging on one's ear, say — 2018-07-10
• Spasm — 2018-04-10
• Nervous twitch — 2018-02-07
• Little jerk — 2017-12-30
• First X, say — 2017-11-15
• Sign of nervousness — 2017-08-27
• ___-tac-toe — 2017-07-10
• Little jerk — 2017-06-08
• Part of XXX — 2017-04-28
• Constantly adjusting one's glasses, e.g. — 2016-06-03
• Part of XXX — 2016-05-05
• Tourette's symptom — 2016-01-24
• Personal quirk — 2015-08-30
• Part of X-X-X — 2015-08-26
• Constantly twirling a lock of hair, e.g. — 2015-01-07
• Idiosyncrasy — 2014-12-07
• Not too big a jerk — 2014-09-12
• Peculiarity — 2014-08-15
• Little jerk — 2014-04-17