Once he eats wait 2 days before you hold him. Go ahead and just let him know your hand is in the cage and pet his mid section and gently lift him up and hold your other hand out and let him sit in it. Don't make any sudden movements and if he jerks his head back try your best not to move your hand fast. Also try to avoid touching near his head/neck area.

Another thing I recommend is don't let anyone else but you hold him tell he is use to you. And don't be scared! I was a bit spooked at first but really they are harmless animals.