The Ninebot One features a gyroscopic system which seeks its balance by itself and has a very quick response. This allows you to completely control your device only through adjusting your body posture.
If you lean forward, you will accelerate, leaning back will slow you down. Same goes with leaning left or right.
It usually takes about 30 minutes up to an hour to get the hang of the controls, of course, we will gladly help you with that.