Reduces the idle chatter and social conversations NPCs have between you, and themselves.

The game settings changed were:

fCombatDialogueTauntMaxElapsedTime
30 to 60
fCombatDialogueTauntMinElapsedTime
10 to 30
fAISocialRadiusToTriggerConversation
500 to 50
fAIGreetingTimer
5 to 40
fAIExclusiveGreetingTimer
2.5 to 30
fAIForceGreetingTimer
3 to 40
fAIInDialogueModeWithPlayerDistance
500 to 50
iAISocialDistanceToTriggerEvent
200 to 50
fIdleChatterCommentTimerMax
20 to 60
fIdleChatterCommentTimer
10 to 30
fCommentOnPlayerActionsTimer
20 to 40
fCombatDialogueAttackMinElapsedTime
5 to 30
fCombatDialogueAttackMaxElapsedTime
10 to 60
fAISocialTimerForConversationsMin
10 to 30
fAISocialTimerForConversationsMax
30 to 90
fAISocialRadiusToTriggerConversationInterior
500 to 50