The rules about readying a weapon against a charge states :
You can ready weapons with the brace feature, setting them to receive charges. A readied weapon of this type deals double damage if you score a hit with it against a charging character.
I'm wondering if this kind of readied actions should be visible or not during the combat and then possibly modifying the actions some characters or enemies would make ?
Here for the example, the PC group progress in a dungeon corridor, the fighter with a brace weapon opening the way. At that moment they face a hostile group of bandits. The fight begins and the fighter being first at the initiative roll decides to set its brace weapon as a readied action. If they had been first at the initiative roll, the bandits would have charge the fighter. Now that the fighter prepares to receive a charge, if the readied action is visible to them, it would obviously be a less appealing idea and they would engage him with a move action instead of charging.
The other examples I found on this subject are based with generic creatures which don't really bother of the ennemy tactics, but in this situation, should the bandits deny the fact that the fighter has readied its action and charge him anyway or should they notice this action and react accordingly to avoid impale themselves on the weapon ?