Should I reply to this Facebook message?

[Jess]

So I started university over a month ago and a random guy from uni added me. I know he's definitely at the uni cause I have actually seen him around campus twice. We had no mutual friends or anything, so i did initially find it a little weird, but I assumed that he was just looking for people at the same university as him. He recently messaged me just saying, he was from the same uni and what course he was doing, halls he is living in (same hall as me surprisingly) etc...
He also mentioned that he wanted to get to know a few people and would like to meet me!?
He does seem like a nice guy, but I don't actually know him.

All I know of him, is from what is on his Facebook profile.
I don't know whether to reply or just ignore the message.
As I said earlier, I have seen him on campus twice, both times he smiled and hello. So I now I just don't know.

any advice?