There is an ''explain'' action seen in some characters:
https://www.youtube.com/watch?v=Fa3X...tu.be&t=13m38s
https://www.youtube.com/watch?v=tmbX...youtu.be&t=57s
The emotion already exists in npcs, as it was said SE would be addding emotion/glamour stuff in patch 3.1
can you make this happen? its a really nice emotion and great for RP! plus the fact, it already exists.