Rules of Less Intrusive Conversations:

A Sim that has less than 25% of the combined average friendship towards all Sims in a social group will not be able to join that social group. In simple terms, a stranger is never allowed to join a conversation. Only Sims who know each other well enough can attempt to join a conversation.



A Social Group that has less than 25% of the combined average friendship towards another Sim will not be able to ask that Sim to join their social group. Additionally, this prevents Sims from stopping a conversation to talk to a stranger instead. In simple terms, an established social group will not be broken to talk to another Sim that is a stranger to that social group.



Sims with the combined average friendship that is higher than 25% towards a social group will attempt to join the conversation with a random chance that depends on the level of friendship. In simple terms, the higher the friendship, the higher the chance of a Sim joining a social group.



None of the above rules apply to conversations that only involve NPC Sims. Non-Playable Sims will continue having group conversations like usual.

Gameplay Misconceptions:

Mechanics related to joining social groups do not take account of pre-existing actions made by Sims. If a Sim decides to talk to someone right before that someone forms a social group, that Sim will automatically join the formed social group. This is a case where a conversation has just begun and the "joining" behavior is not being accounted for.

Warning!

is a script that modifies Sims behavior of joining into ongoing conversations. Strangers should not be joining social groups without being explicitly invited and this mod aims to make that a reality. This mod does not prevent social groups from being formed and it does not prevent strangers from initiating conversations.Introducing additional rules that prevent Sims from having frivolous group conversations with anybody at any time will change the dynamic of the game. This change of behavior might impact the feel of the game and how socializing occurs in public settings (like bars and clubs). You might notice less Sims talking to each other which is partially the purpose of this mod.It's possible this mod will become broken from game patches. If Sims in your game fail to begin conversations autonomously, remove it.