In fact, each hamster's personality and behavioral habits are different, so the following performance is not absolute. But at the same time, in order to ensure the health and safety of your hamsters, you should be gentle and cautious when interacting with hamsters, and avoid disturbing or harming them excessively.

1. Grooming: Hamsters groom their fur when they are relaxed or after being petted by their owners, which indicates that they feel comfortable and at ease.

2. Droopy ears: Droopy hamster ears usually indicate that the hamster is low in alertness and in a relaxed state. On the contrary, erect ears indicate that they are alert.

3. Body posture: When a hamster is satisfied or relaxed, it may show a lazy posture, such as lying on the ground or flexing its body tiredly. Especially when they are sleeping soundly, their tired body posture is a reflection of their trust and familiarity with their owners.

4. Get close to the owner: When hamsters are in a good mood, they may take the initiative to climb onto the owner's hand, or even turn over and use their limbs to resist. This is actually their way of expressing closeness and trust.

5. Accepting touch: As the relationship with the owner deepens, the hamster will gradually accept and enjoy the owner's touch, and may even gently bite the owner's fingers with its mouth. This is not a real attack, but a way for them to express intimacy.

In addition, understanding the living habits and needs of hamsters and providing them with a suitable living environment and diet is also an important part of establishing a good human-pet relationship.