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If your by yourself you might want to look at a vaccum bleeding system. Probably pick one up for ~30$ or so. Else just release screw, pump and hold break, tighten screw, repeat.
The brake is gravity and is not just like a car... leave the bleeder screw shut "tight" and fill master "rags" are a good idea leave the cover off and pump the brake nice and slow and just be patient, nice and easy... you see little air bubbles coming up from the fluid... when there are no more air bubbles coming up cover the master with a rag and pump it harder you'll see the fluid hit the inside of the rag and you should feel some pressure... be patient it'll work... some times you have to leave it for a while and let the air work it's way up. I think every time you crack the bleeder screw it like starting all over... IMO Good luck
connect vaccum hose to bleeder valve, pump vaccum bleeder to create vaccum, open bleeder valve, watch for bubbles, close valve, check fluid level and repeat until you have a solid feeling brake.
this works great on hydraulic clutches too!
No different that a car, only on a smaller scale....
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