5 Scientifically Backed Ways to Seem More Powerful" hits at least one thing that I already do.
I'm not exactly wearing red sneakers, but I have worn nothing but the same jeans (three identical pairs that I bought a month and a half ago), white shirts (I bought a couple of those then, too, but stupidly ran one through the dryer with a red ink pen), and ties to school every day since.
Now I just need to work on the eye contact, because I don't know that I can do the big-picture language crap. I don't have any patience for those kinds of people. Sadly I'm rarely in elevators.