is there a mod that adds more dialogue to NPCs?

[UnderDog]

I'm tired of hearing the same thing over and over again. And if there is please post it here.

[Ilja]

Follower Commentary Overhaul - FCO by terzaerian
http://www.nexusmods.com/skyrim/mods/52019/?

Guard Dialogue Overhaul by Eckss
http://www.nexusmods.com/skyrim/mods/23390/?

Others are a harder to parse. Bethesda didn't really record more lines for individual characters and crafting them from other sets from same voice actors is a hard job, because words and phrases rarely match to each other by tone.

[UnderDog]

Does intresting NPCs add more?

[Oleg Mongol]

Interesting NPCs adds loads of interesting (As the name suggests) NPCs to Skyrim. Hell, there's even companions and marriage-able NPCs too, and I think there's some quests. All fully voice-acted characters.

[raubrey]

I personally think Interesting NPCs is the best -- adds far more to the game than the overhauls above. That said I'm running all three right now and not having any issues. The Follower one I kind of wish I hadn't installed though as it's too chatty and repetitive, too often, for my taste -- at least with my last follower.

If you get Intetesting NPCs try to grab a Super Follower, their dialog is much better.
See their website for a list. http://3dnpc.com/wiki/interesting-npcs/followers/
Rumarin is rated the best and I agree but all are better than Vanilla.

Also, NMM can wonk out on 3DNPC -- if you have trouble installing it just give a shout out.

P.S. I've also installed Indigo but am not far along enough with him to say how good it is.