Why did the cat sit down (details inside)

Ok, this is a silly question, but I’m a bit curious. I was riding home when I saw the neighbor’s cat outside of its house. The neighbor’s house is next to mine so at that point I had already stopped and got down of my motorbike. The cat was looking at me with its tail curved mid-air. I was bored, so I decided to be friendly with the cat and see what happened. I bent down my back and just blink at the cat continuously. The cat kept looking at me, but after a while it sat down instead of the original position. It was sitting straight up and still looking at me. I then opened my door and got inside, but not before looking back at the cat. It was still sitting and looking at me.

I wonder what the cat was thinking. Could it see that I was attempting to be friendly? Was it confused about what to do? Or was it feeling relaxed?