Contunues shooting how to use it

You put the camera into one of the Continuous modes by holding the Release Mode button (to the right of the LCD control panel on the top of the camera, marked with a set of overlapping rectangles) and turning the command dial on the back. The two choices are Continuous Low and Continous High (marked with the overlapping rectangles and the letter "L" or "H"). Frame and shoot as normal.

In continous mode the camera will take pictures as long as your finger remains on the shutter release button or until the buffer fills up. In Continous High the camera will take as many as 4.5 pictures a second. Custom Setting #d6 controls how fast Continous Low shoots.

Bear in mind that the speeds mentioned are only maximums. If your shutter speed is set to half a second, you're obviously not going to take four pictures in one second.

This is all in the manual, under "Release Mode".