If you have the Microsoft Sidewinder stick, just twist the stick smoothly, and the plane will pivot or turn. It's pretty easy. You pretty much use the rudders. So whatever moves your rudders in the air, steers your plane on the ground.
I have CH Pro Rudder Pedals, which control my rudder function (duh!) and ground steering. You can also do differential braking using the F11 (left brake) and F12 (right brake). You hit F12 and aircraft will swing sharply to the right. For tail draggers, its the only way to steer. I have a DC-3 add-on where steering is best done with differential braking and thrust. To turn right I do F12 and increase thrust on left engine.