Let's Talk doesn't add dialogue, it just increases the frequency of the game's vanilla dialogue. Makes sure that i always hear that sweet sweet gossip about eyegore when i go into town.
More Names! just puts more names into the Random Names List. The modder advertised it as like "makes you encounter less people named Hotlongs" and i was hooked.
I've been meaning to check out TreadLightly's Lonely Recruits mod because they wrote dialogue for each of the recruits in there and that just sounds rad. (btw, i edited y'alls posts so that they link to the workshop)