Regular calibration: Every two months of use, the machine can be placed in the center of an open living room and allowed to spin a few times before returning to the charging dock. This can help it regain its initial sense of direction and walk more obediently. Listen for movement: When it makes a soft "click" sound after colliding with something, instead of quietly avoiding it, you should check if several small black circles around your body have been scratched by nails. Timely replacement can save a lot of trouble. Handle with care: When pouring the dustbin or cleaning the roller brush, remember to gently flip the machine over and avoid hitting the raised circular area above your head. That is its most precious "eye", only by treating it gently can it always see clearly. Avoid strong sunlight: When the noon sun is intense, you may want to pull up a semi transparent gauze curtain. Overly dazzling light can make its "eyes" blur, making it easy to take the wrong direction. When used on cloudy days or in the evening, its steps will be more steady. Regularly wipe the window: Every three to four days, gently wipe the transparent small disc in front of the body with a soft eyeglass cloth. With less dust, it will move more calmly in the room and is less likely to bump into the legs of tables and chairs.