I got a 3 month old IRN more than a month ago. I've now been able to hand train the IRN and he gets on and off my hands comfortably. But occasionally he plants a soft bite on my fingers, especially my thumb when I move it. The thumb movement actually happens inadvertently - so I am trying to stop that. Should I make any other changes so it does not bite or will he get used to it? Also, he hasn't made a sound since I got him. The only sounds are those grumblings when it is taking its naps during the day. Is there a way to get him to communicate with sounds?
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