As a player, I am generally active and inquisitive. I poke at things; I try new solutions; I ask lots of questions. I tend to play intelligent/charismatic characters to facilitate this, and rarely build a character typical to its character class.

As a DM, I tend to cite that the DMG mentions that the DM has ultimate authority only three times, but talks about fairness and consistency twenty-five times. I tend to be very forward with how and why "rulesish" aspects of the game work as they do, and let all of the surprises be IC.

In terms of design, building, and scripting, I am an experimenter. There are a number of things that the game can do that it wasn't necessarily designed to do, and I find a fairly large amount of enjoyment in seeing how much of that can be made workable into normal play.

Plot wise, I tend toward political intrigue and puzzles if left to my own devices, but I try to accomodate my players. If I end up with a group that loves violence, they can expect to kill interesting things fairly often; if I end up with a group that loves tricks, traps, and exploration, I try to provide them with interesting locales to explore.