How to disable annoying NPC's initiating dialogs?

[mishovur]

It's extremely annoying (especially when you are playing with some mods) when NPC in settlements (mostly traders, but not only) tend to bump into you and initiate generic dialogs.

Is there a way to make them speak only when spoken to and ignore your presence otherwise? 

 

I'm not sure I explained it properly, what I mean, let's say I'm standing at some workbench crafting, or, really, just standing in the middle of the crowd. And some NPC bump into me and start talking 'do you want to buy something' or whatever. 

So the question is - is there a mod that completely prevent any initiative from NPCs, so they won't try to initiate ANY dialog interactions whatsoever. And only speak to me when I start the interaction myself?