You bleed the clutch slave cylinder just like you would brakes. You will need also someone to help you.
Right where the line goes into the tranny there is a little valve/plug that you loosen to open. Put a little tube on it so that you can direct where you want the fluid to go. Then (with the valve closed) have someone pump the clutch pedal a couple times then hold it down.
While they are holding the pedal down crack the valve open and let some air/fluid come out, then close the valve. Repeat this process untill no air comes out.
Make sure to watch the fluid level, so that you do not pump more air into the system. The clutch fluid uses the same resevior as the brake fluid.