A "cheap" relaxing is to force/hold what you want, but relax knees and elbows, (so they can naturally bend under your weight, when you're reaching for the ground, giving you chance to easily push yourself off the ground next turn - like in wushu), or any "loose parts", joints that end yehr body, like wrists, ankles, neck.
That's an easy trick to make you look more relaxed... somehow, but that's still not "it" ;].