Doing NaNoWriMo has seen me talking quite a bit about how I write - and as with so many things, having nattered on about something for a while, I eventually start to actually think about it.
One of the things I've realised is that my writing style is strongly influenced by my background
When I was writing scripts, I was also involved in theatre companies in various capacities (always behind the scenes) and learnt first hand just how much directors hate to be told what to do. That goes for stage directions in the script as much as being given 'advice' (as they often seemed to take it) on budgetary constraints.
So I learnt to write scripts with an absolute minimum of stage directions. I'd start off with the bare bones of dialogue, and mention an action or a movement only if it was absolutely critical to the plot (things like a kiss, or a slap, spring to mind).
I haven't changed that part of the process.
I still write the dialogue first, then do a second pass to add 'stage directions' - but now, to get closer to a novel, I do yet another run-through while adding actual prose. It might take me five or six passes, in the end, to get to a level of description and detail that I'm happy with. Given that most NaNo participants (and, so far as I can tell, writers in general) adhere to the mantra of 'no editing while writing', this may be slightly contraversial, but it does mean I tend to get a fairly readable first draft.
Another tendency I've inherited from the stage is to put chapter breaks at scene changes. I read a fascinating post the other day on ending a chapter, which gave me a lot of food for thought, and I suspect I may want to rearrange my chapters anyway in the final edit. But for now, they go wherever seems logical, and to my theatre-trained mind that's "when we need to move some set around".
Doing a preliminary casting of my characters (in my head, of course) is another trick I picked up in the theatre. There are probably other habits I'm not even aware of.
I'd love to know more about how other people approach the writing process. Have you thought about what influences your style?