Another excellent multiplayer community video was recently released, What's role-playing and how to do it? by Larpushka. It introduces roleplaying concepts and a helpful overview of some of the types of experiences available in the NWN MP community. It is also a nice complement to the NWC Quick and Dirty MP Roleplay Reference for newer players, which provides an orientation to the multiplayer interface and concepts such as emotes.

https://www.youtube.com/watch?v=KOt2VsBGQEU

This has been added to the video links in the NWN:EE Multiplayer Resource page.