Usually I'm asking myself questions (what do I need here? Do I need to add something else if X happens?), and putting together a solution to a puzzle - this is

Usually I'm asking myself questions (what do I need here? Do I need to add something else if X happens?), and putting together a solution to a puzzle - this is stuff I've already mostly worked out, mainly just replaying my thoughts. Also I think of what will the computer do with what I'm coding, how things will calculate, or how the user will see it or respond, part of it is on the fly debugging, part optimization, often during this, I also think of additional code for optimization elsewhere, fixes or new features. One thing I know is when I'm in the zone my human interaction skills goes down, not much for platitudes or chit chat, unless it's about the stuff I'm working on.