Why are you looking at me like that ?

After it rained all night, in the morning I went out to the backyard to do something, when I was on the move I felt something watching, it turned out that an orange stray cat in my environment was sitting on the stairs, from his posture he looked warm, but his facial expression that I didn't understand, is he hungry, cold, or annoyed, I try to show my facial expression to him, nothing happens his facial expression remains flat like that.