[Andy B]

Third and fourth are pretty standard. I think I like the check-call line on fifth. If he's got a big draw, he's the favorite, and if he's got something like two pair, you let him bluff off his money while drawing to runner-runner. On sixth, there is some chance that you're drawing dead, but I think you've got enough hand to check and call, maybe enough hand to call down. I prefer checking and calling on the river. Your hand is more of a bluff-catcher than anything.