Hah, my W. Hognoses like to act all scary sometimes for the pinkies. And for me, if they're feeling particularly rowdy. They curl up, and breathe reeeeally deep so that their bodies look a lot bigger, and each breath is this really menacing, rattling hiss. And they'll puff up their cheeks (which sort of gives 'em more of a triangular head, like a rattlesnake... but really it just makes them look even more adorable) and hiss loudly and flatten out a little hood (it's nowhere near as impressive as a cobra's, but you have to give 'em credit for trying). And then if they're still pissy, they'll strike out.
It's hysterical (but don't laugh, you'll hurt their feelings). With their puffy cheeks and faux hood, they'll throw themselves in your general direction with a very loud hiss, acting like they're going to strike.
One of my Hogs escaped his cage once, and he decided to curl up in the corner of the stairway and hiss threats and me and my two cats. At one point, my hand was about two inches from the pissy little snake, and he was mock-striking left and right (I was subduing the cat, at that moment). Two inches and half a dozen strikes later, he'd never even hit me. He just threw himself out with a big angry hiss and missed the target completely.
All for show, hognoses. All for show.
I've never seen a W. Hog play dead; none of mine do it. Captive Easterns apparently are more prone to doing it than captive Westerns.