W/U ? Tap to move left/right wheel forward.
S/J ? Tap to build momentum before moving a wheel.
X/M ? Tap to move left/right wheel backwards.
To move, push both wheels in the same direction.
To turn, move one wheel. If you are turning in the wrong direction, remember that pushing a wheel turns the chair in the opposite direction.
Tap the neutral position on each wheel to build momentum before tapping forwards or backwards.