I'd tell you to get something to do, especially if you're used to havin' a lot of things goin' on at home - it can get pretty boring, otherwise.
[A beat passes as he hesitates, adding with a wry smile:] But if you do get bored and are in need of friendly company... well, you know where to find me. [There's the slightest emphasis that he places on the friendly, there, just to clarify it -- he really means it. And maybe, just maybe, he doesn't think you're the only one who could use a friend.]