You need two people to bleed a clutch. The correct way is the following:
You need;
-Clear bottle with some fluid in it
-Hose to go from slave bleeder valve to bottle
1. The end of the hose in the bottle should be submerged in fluid(so it doesnt suck up air back into the line before you close the valve)
2. One person pump the clutch pedal 3 or 4 times and hold the pedal to the floor on the last pump
3. While the first person is holding the pedal to the floor, the second person opens the bleeder valve until fluid squirts into the bottle. Once it stops flowing, completely shut the valve
4. Repeat steps 2 and 3 until you see no air bubbles coming out of the line in the bottle
Be sure to keep an eye on the master resevoir, if you run it out of fluid, you are basically starting the process over as you just sucked air into the line. It may take a whole bottle of brake fluid to completely bleed the line depending how bad it is.
I always work by myself so I got a speed bleeder from Autozone. Just open the bleeder, attach a host, start pumping.