Confession: it typically takes me, from experience, an average of 3-4 months to fully absorb myself into a new RP character. At this point I decide if I want to continue playing them or not, and currently, I'm still finding my footing on Nia.
One thing I've been putting a lot of thought into is, as the title suggests, how does your character talk?
Do you use ye olde Englishe, high and noble? A bumpkin accent, full of 'ain'ts' and 'nahs'?
Does your character speak pretty much the same way you do IRL, or differently? Does your character swear a lot? If so, what kind of swear-words do you use? Harlot and popinjay, or hoebag and d*ck? Are you comfortable using modern anachronisms, like 'cool' and 'like'? Do you put on any kind of racial/regional accent, and if so, do you spell it out phonetically?
I'm interested in what thought you've all put into this, and also any preferences/peeves you have about other characters' speech mannerisms. Are any speech patterns off-limits, in your humble opinion?