I read blog posts in the voice of the author...

I've never had that happen. I think it'd be pretty sweet though :D, kind of jealous.

I'm the same way. I absorb their mannerisms and accents, but on an extreme scale. Like a characture artist I over dramatize their reflections, pauses, and their pronunciation of certain words.

I do this on a more subtle scale when talking to someone with a thick accent or interesting quality to their voice. I don't mean to, it just happens.

I think the first time I became self-aware of it was when I was a child, we took a trip down south. I remember sitting at the table and ordering some sweet tea, only to have my sisters swift foot kick me from under the table. Apparently I had been mimicking the waitresses accent the whole time.

I do that too Michael! It's second nature, I do it without thinking and have had to make myself more aware. It sure comes in handy when you have to move to a new region though.

It's human nature to mimic the accents of places which aren't our homes. Self-preservation reflex. Back in the time of caves and clubs, accents would be like territory markers, a person would defend their territory against someone with a different accent as they were foreign and likely a threat.

I'm sure there's some personality psychology behind why you do it. Probably because sub-consciously, you don't feel safe and feel threatened, going back to our primal instincts.

Look it up, it's quite interesting for 30 minutes of reading.

I don't quite absorb mannerisms but I always hear people's voices when I'm reading something by them if I know what they sound like.