Other than teaching tricks, I play with my birds by playing tug of war with a rawhide lace with a bead on one end. I drag it around, they pick it up, and we tug back & forth. I also take a small tea towel, and drop it over them, and lift it off, playing peek a boo. We play hide & seek the same way, gently chasing them around. Another game my 'tiel likes is find the seed. We play that with 3 tiny condiment cups from fast food places. I put my hand up, so she cannot see which cup I hide the seed in, then raise my hand, and she finds the seed. Games you can play with human babies are fun for your birds.