He's 16/1 so the first thing that should pop into your head is that he's passive. If he's passive, then we get so much more value betting than checking because his calling range >>>> betting range. We have the Kc so it's not like he's semi-bluffing. Go ahead and b/f a lot on this board. I'd fold to his turn raise.

If we have any postflop reads that'd be nice though.