Like someone using known preconceived notions, or stereotypes, about their group to their advantage. A ditzy blonde bimbo, who is actually intelligent and diligent taking advantage of people assuming she's a brainless sexpot to move behind the scenes and get stuff done. A big Irish Ox type using a smaller smarter looking underling as a diversion. Have the suited and bespectacled slim and slick guy look like the shot caller while the big dumb bartender is the guy actually calling the shots. Writing as different races, particularly in worlds that are similar to ours, is wrought with pitfalls. People are particularly prone to offense these days, so do you write a character to subvert expectations? Could cause problems. Do you write someone entirely divorced from stereotypes? That could cause an entirely different set of problems. In my opinion if you're writing as a different sex/race/culture/whatever and particularly if it's an existing one you should ask yourself what you're bringing to it or if you're just using it to spice up some fairly mediocre writing. If you are adding an identity to a character to make it more interesting and not much more, don't. If you want to write a character of a certain background develop a character of that background. Read a little about that background. Try to figure out a unique character. There are some pretty basic guidelines to at least show a good faith effort. Don't be the guy who writes that Miles Morales is Thor comic book. For fucks sake don't be that guy.