Which of the visual clues for the defensive drivers to spot on impaired drivers are?

Defensive drivers should look for several visual clues to spot impaired drivers, including erratic or swerving movements, sudden stops or acceleration, and inconsistent signaling. Additionally, impaired drivers may have difficulty maintaining lane position or exhibit delayed reactions to traffic signals and signs. Other indicators include unusually slow driving speeds or the presence of a driver who appears distracted or unresponsive. Noticing these behaviors can help defensive drivers take precautionary measures to avoid potential accidents.