I guess I should include an explaintion for my river play. I thought that he could potentially have held 86 and drawn at a straight on the flop, and then drawn out to two pair. A small bet ensures action from this hand. I also felt that if he happened to have a smaller flush, he'd play back, while a push could have maybe made him too worried about a bigger flush to call. Finally, I thought that maybe he'd made some sort of straight there (maybe 34). This was a pretty passive table with some pretty lousy players that sometimes folded everything and sometimes called with really marginal hands, especially in the blinds. I kinda thought that $4 was small enough that it would get called or played back at by worse hands. I think that at most tables, I would happily push the river, but this table told me a smaller river bet would yield better returns.

Edit: What do you put the villain on in this hand?