u/Snowars

So i got my 2 year old Blue-yellow Macaw 2 ish weeks ago. He is stepping up on my arm just fine and then just runs to my shoulder. But he hates my Hands/Fingers. Any time i come near him, either while bobbing my finger up and down, in a fist or any other way, he gives the reaction that he doesnt like my hand. Now he eats out of my open palm and burries his face/beak in my hand if the goal is to get a Nut out. My question is now. How do i get him to accept my Hand so i can later touch him for pets or even just stepping up on my Hand. Thanks a lot in advance.