Feed the cat.
From a realistic point of view, the cat came to the door on its own initiative because it was hungry and wanted to find something to eat. At this time, the owner can feed the cat some rice and consider adopting the cat if possible. After adopting a cat, pay attention to take it to a doctor for a physical examination, get rid of bugs inside and outside the body in time, and then vaccinate it in time to ensure its health.
Consider adoption.
In real life, if the cat comes to the door on its own initiative, it is very predestined. You can consider adopting this cat that is destined for you. I used to want to have a cat, but I didn't know how to choose it or where to get it. Now, direct delivery; Once I wanted a cat, and I had various reasons and excuses to force myself to give it up. Now, everything is fate. Speaking of fate, just accept it. If you want to adopt a stray cat, you will lose a social stray cat, which in itself is a contribution to society.