Taking a Step

My arms were locked straight out in front of me. I blinked. The gray floor was covered in orderly, repeating square studs. I did not move at first. Then I flexed my right leg hinge and planted a green foot into the next square stud. It clicked faintly against the surface. Next to me stood a taller figure holding an orange ruler, completely motionless. I kept my arms level, looked forward at the blue horizon, and held my position.