This is in response to Trey's recent post.
The accent thing never worked well for my group, we would end up talking like pirates and it would really bring us out of the game rather than contribute to immersion. Talking in character even without accents was a real challenge for us, it was hard to think of what the character would need to say. In the end we decided to try talking about our characters in a narrative voice rather than an active voice. The emphasis is on intention and specific talking points. Stuff like -
Jozen boldly explains what just happened at the dark tower to the king, specifically highlighting the danger the heroes were in, he leaves out the discovery of the magic staff however. He is hoping the King will reward him and not ask about the staff.
Florent recites a ballad he knows to the maiden, staring into her eyes when describing the romantic part. He is really trying to impress her.
The Myrish dock workers tell you that you in no uncertain terms that they want you to leave, their speech heavy with foul curses and the deep Myr accent.
We find its a faster a more direct way than trying to act out the scenes in person, and it lets you play a cool or eloquent character even if your improv character acting skills arent that great.
(L.A Noire, Fallout New Vegas, Clash of Kings, and my Skaven army are the reasons I haven't been posting lately.)