my cat went into an empty room and started meowing, then ran off when i went to check on it...why?

This cat that's been hanging around my house for a couple years (because I always feed it) decided to come inside my house. It comes in once in a while but not usually (probably now because it's been raining). It went inside one of the rooms for a while. It came out and then went upstairs to another room and started meowing. All doors are open so I can hear the meowing from downstairs. It just kept meowing so I go to the room where it is and it's sitting there and still meowing when it sees me. So I start to go inside the room and the cat moves. I stand still and it stops meowing. I come closer and it meows again. I stand still again and it goes past me into another room (now I don't know where it is lol). And I say "it" because I'm not sure what gender it is. I don't know if it's a fixed boy or a girl. I've looked at it from the back and compared pictures from the internet and I just can't tell lol

So what's with his/her behavior? Is it playing hide and seek? Lol I doubt it. It feels like the cat doesn't like me but yet it meows like it wants attention so I don't know what to do??