First, fill the master cylinder and open the bleeder.
wait till fluid comes out, close it.
make sure there's about 3/4 fluid in the master, put the cap on.

push the slave in with your hand on the release fork, let it come back out, do this several times, watching the fluid level. You should see bubbles in the master.

Try and depress the pedal, you should get something, then have someone sit in the car, and pump it, crack open the bleeder and remove the air.

You will have to pull the pedal back by hand to get it to repump.

Make sure to fill the master, and then cycle it with your hand again. It should easily come back out to touch the release lever when it has less air. You should see no bubbles going back to the master when you cycle it manually.

then once it feels almost normal, depress the pedal and hold, crack the bleeder, if it's clear of air, you're done. You'll need to pull back the pedal and it may take a pump or two to regain normal feel.