zaorig

I have a very friendly african grey she rarely bites. i can easily get her to step up when she is in her cage or out of her cage. But she always hangs out on top of her cage and everytime i try to get her to step up she bites me but i dont react to it cuz ppl say that if you dont react the parrot gives up and mine does give up but once she gives up she runs to the other side of her cage. ppl say that u shuld grab the parrot but i dont kno where to grab her from. shuld i grab her from her toes? from her legs? from where? and if i have to grab her from her toes how? she has them wrapped around the cage? if im not supposed to grab her then what other ways can i get her to step up from the top of her cage? sorry bout all the questions i just dont know what to do i had two african greys before but never had a problem like this. i would really appreciate it if you helped Thankyou