Another helpful one, is "Go to…." as in "Go to your cage" or "Go to you perch". This one is the opposite. Place the bird on your hand. Extend the hand so that teh desired landing place (cage, stand, whatever) is between you and teh bird. Hold out atreat, over teh desired landing spot. say, "Go to your perch!" ina realy excited tone. The bird will eventually clamber on to get the treat, and tha'ts when you reward BIG time! Eventually, once they get the idea, move your hand (in incriments, this is harder tehn flying away form you) for that they are facing away from you. Reward everytime- this is expecially important with going away commands, as these are not self-rewarding behaviors. Most parrtos natrually want to be withtheir people, so the "come" command is self-rewarding. The go away command is not. However, once your bird has it down pat (and I mean, not missing even one) you can start weaning them off treats and just using voal praise. However, some birds just don't think words cut it, and may require treats anyway.

All my birds know "Come to Mommy", "Come to Daddy," "Go to Mommy," "Go to Daddy", "Go to your cage", and "Go to your stand". I've even done some free flying with them in gymnasiums, though I would not recomend outside flight unless you really want to risk loosing your bird!
References :

I set him on his perch and took 2 steps back. I held my arm out and said 'come'…I was close enough that he could almost reach me with his beak but far enough that he actually had to jump. When he jumped from his perch to my arm I praised him BIGTIME (good bird!!!! good bird!!! scratch his head if he likes that) and gave him a small piece of peanut. I told him 'go back' and set him back on his perch. I waited until he finished his peanut btw! He didn't want to do anything until it was GONE! lol. so make sure that you give him small pieces that he can chew up quickly. Once he was comfortable going that short distance I took another step back and did the same process. We've been working on this for about a week and now I can go about 6 feet away and say 'come' and he'll fly to me. he caught on within the first session it was just a matter of getting him over the fear of flying so far. Pick a treat that he only gets when in training. I use peanuts or …gasp!….fruit loops lol But make sure that he can chew them fast! for instance I break the peanuts into 4 pcs. Also, be sure to end the training session while the your parrot is still 'interested'….you want him to think that this is game and not work. Therefore, cut the session down and quit while he is still having fun. For my greenwing the fact that I get so excited about what he is learning makes him really excited. You can see that he is proud that he pleased me and is having a great time. I made the mistake of making it seem like work the first few lessons by not stopping. He finally got tired and turned his back on me lol. 15 minute sessions are good!

Good Luck!
References :
Parrot mommy and breeder