As far as conversation killers go, try, 'this room's quite rectangular, isn't it?' (Copyright Charlie Brooker, but I'm only borrowing. ) And yay for you, getting accepted and things! I like acceptance. It fills me with a warm glow, which is then usually doused with the cold water of existence. But hey ho.
At least he's your neighbour, though! :D So you're sort of guaranteed to see him lots, right? (Proximity will bring you together. You look at that sentence and tell me I'm wrong.)