This mod was originally designed to not require me to click on the chat option to open the Rogue class hall by showing my coin. While it still does this, it's been expanded to always select the only available chat interaction option if there's only 1. It will also auto-turn in quests once selected, and will auto-accept quests when selected.
Couple things to note:
1) Holding shift when clicking an NPC will bypass the mod
2) If more than one option is available, the mod will require you to select an option with the NPC.
Here's a video to see the addon in action:
https://www.youtube.com/watch?v=Ygh5ZpEoC54