This is simple but good.  Hold a frame with your arms and circle getting the sense of support from the obliques/waistline below.  As you twist play with your breath.  Exhale to twist to feel muscle or inhale to feel space between your vertebrae of the spine ( and maybe get more twist).  On the inhale, think to breath into the lunge of the twisting side ( the side you are not twisting too) see if there is more movement again. Do this sitting, standing or kneeling.  Feels good and makes you stronger.