Ten minutes after landing , he 's issuing polite instructions for neck stretches , rather than barked police commands : " Look up " ( impossibly blue sky ) , " look left " ( horseshoe crabs ) and " look right " ( a starfish ) , before moving onto spinal twists , and a position called the peanut-butter jar -- " a bit of a hip-opener " -- followed by the wind remover , pulling my knees up to my chest .