I have tried searching previous threads and have hit a dead end. Cinnamon, my boy, makes a noise like a motor running on a car when I feed him. What happens is he comes to me for the veggies and I give him some. Then Coco, his girlfriend, will start to make her way over for veggies and then he kind of runs around her and chases her making the car motor sound. He's not shy with me at all, I can pick him up and brush him and pet him. Coco is still pretty shy and its really difficult to pick her up.