How do I kindly say "Actually, I don't want to hang out sometime"?

Okay, so I never thought I’d be asking Fluther for this sort of advice but I seem to have fallen down a hole.

While out with friends I was introduced to this guy. At some point there was a seat free, he was looking kind of lonely and we chatted for a while. He asked for my number so I gave it to him. Over the next couple of days we exchanged fairly mundane texts (always intitiated by him). Now he says he’d like to get to know me better and we should hang out sometime.

The problem: I’m not interested. He’s a nice person but I found him kind of boring. I did a bit of facebook research and we have nothing in common. Even my usual all-rounder conversation topics (food and university) went nowhere. We’ve already discussed the weather so much I have no idea what we’d talk about while “hanging out”.

I’m comfortable with the idea of saying no if somebody wants to be more than friends, but how do I respond if even the friends zone is pushing it?