Just like bleeding the brakes. There is a bleeder valve on the external slave cylinder on the driver side bellhousing. Have a helper push the clutch several times and hold it down, open the bleed screw, close bleed screw, repeat. Be sure to keep the clutch fluid reservoir full! I have gotten them to kinda self bleed by opening the bleed valve a bit, keeping the reservoir filled and letting the fluid run through and push out the air but it takes a while.