I find when I read a book, my thoughts start to sound like dialogue. For example, I just finished reading The Help (good book, by the way) and while I was reading it my thoughts had a bit of a southern accent. Then I started Extremely Loud and Incredibly Close and my thoughts tend to run on sentences, hence this post. I find that it happens when I watch movies too. After I finish watching Pride and Prejudice I notice myself using words like 'thither,' 'mischiefs,' 'felicity.'
And it's not just my thoughts either. These things tend to work themselves into my dreams. I have been dreaming of Clark Kent (albeit without complaint), black maids and spies (we've been watching Burn Notice lately as well.) And sometimes, it works it's way into my life. Like the week I read the last Harry Potter 3 times (yes, the week it came out. I had a newborn and spent LOTS of time nursing and reading) every time I left the house I was looking over my shoulder, just a little bit nervous. It took me a couple of days to figure out why: I was worried Voldemort was going to show up at any second. The highlight of that week was the day I was looking for my keys, the whole time thinking to myself, "I know that there is an easier way." But for the life of me, I just couldn't quite remember what it was. And then I realized. I was trying to remember the summoning spell for my keys.
Apparently, I dive a little too deeply.