[Chris Daddy Cool]

i see this play a lot (putting the last raise in on the turn and then checking the river). all i can really say is that some of the time he is being ultra sneaky and knows you can't resist value betting, the other time he was hoping for some type of reverse free showdown, but will call anyways. that's not really helpful at all, i know, but it is probably best to err on the side of caution and check here to see what he has and how he plays and you'd feel sick if he c/r you here and you got more value on the turn than you wanted anyways.