How can you reliably determine if the enemy team is using a lane-specific vision ward without directly revealing yourself?

You can reliably determine if the enemy team is using a lane-specific vision ward without directly revealing yourself by observing their reaction time to your movements near potential ward locations. Specifically, pay attention to how quickly they retreat or adjust their positioning when you approach a common warding spot, such as a bush near the lane or a jungle entrance. If the enemy consistently backs off immediately upon you entering a certain area, even when there is no apparent reason for them to do so (e.g., no minion wave advantage, no support rotation nearby), it is highly likely that they have vision of that area. Also monitor their skill usage. If an enemy uses targeted skills unexpectedly without clear vision, it suggests knowledge gained from a ward. This can also be seen in the enemy's aggression levels. If the enemy acts more aggressively when you are in a specific area even when you are at full health, it suggests that they have vision and know that their allies are rotating. This method is most effective when repeated multiple times to confirm the pattern of behavior. For example, you can repeatedly approach a bush and then immediately back off to see if the enemy consistently retreats at the same moment, indicating that they are reacting to your presence on their vision.