i don't think it's conscious
but if i'm in a meeting with someone and i'm trying to get them to come across to a way of thinking my voice changes occasionally so that it sounds a little like theirs, e.g., if i'm talking to an ozzie my (frankly, crap) ozzie accent puts in an appearance.
(Eds Meds Mathskillz=1,Socialskillz=0, Wed 27 May 2009, 13:46, 2 replies, latest was 17 years ago)

I do a similar thing actually
not so much accent, but my way of talking, like slang, dropping t's and stuff
( Vipros. clever got me this far, then tricky got me in, Wed 27 May 2009, 13:47, Reply)

Do you call them
'mate' and 'bruv' and wave your hands about all funny-like?
( Noeli overtheshoulderboulderholderthingstraplatchboobs, Wed 27 May 2009, 13:50, Reply)

I wave my hands about anyway, that's natural
(like Stan from Monkey Island)

I've never called anyone bruv though
( Vipros. clever got me this far, then tricky got me in, Wed 27 May 2009, 13:53, Reply)

I've always done that
unconscious mimickry. Innit guv.
( The Light in Chains don't touch the Pope's boner, Wed 27 May 2009, 14:13, Reply)