As a player, I'm pretty good at tactics, puzzles, and making effective characters.
As a DM, I'm known for my over-the-top portrayal of NPCs, whether it's the high-pitched, machine-gun rapid patter of a hyperactive gnome or the oily, ingratiating, cloyingly smooth speech of a supposedly friendly arcanaloth merchant. I'm also known for running adventures with a plot if you're interested, but which also can be played as a series of combat encounters if you're so inclined.
Player or DM, I'm also the rules guy in my group.