In the first week after you bring it home, touch it less and let it get familiar with the environment first. Because hamsters (including bears and chinchillas) will be unfamiliar when they come to a strange environment, and then they will be very alert. Make it familiar with your smell, for example, when you put the padding, grab it a few times to let the padding get your smell. After a week or two, you can feed it properly by hand (to prevent it from biting your hand when you feed it), and you can gently touch it when you feed it. After a period of time, you can try to let it eat in your hand, but be careful not to scratch it with your hands (you must wash your hands before touching it, otherwise the food it likes will taste bad). You can put what it likes to eat on the ground, and then put it in your hand all the way to attract it. And then that's it, step by step, and then you get to know each other.