So bet for value or check for safety?

[ThePortuguee]

Full ring 1/2NL at the Borgata. Villain in this hand is a fairly passive seeming Israeli guy who's kinda sitting there minding his business, thinking he's good at poker. He bought in short and I doubled him up earlier when I check/raised another guy big with a flush draw and he ended up having the nut straight.

I haven't been at the table all that long but I showed down a fairly big hand to win a pot earlier and have opened a fair number of pots from position without anything real interesting happening. I probably don't have much of an image at this point, but my strategy in the game was pretty simple and standard: tight out of position, loosen up and play/open a lot of pots in position.

I guess people will criticize the preflop limp but I'm not really interested in that criticism because the game was playing loose passive and most players had bigger than 100BB stacks. I'm also confident I play better than any of these players postflop.

Anyway at the time of this hand he has around $250 and I cover.

Hero is on the button with 4[img]/images/graemlins/heart.gif[/img]6[img]/images/graemlins/diamond.gif[/img]

4 limpers to hero who calls $2, Villain completes in the SB, BB checks.

Flop ($14): 3[img]/images/graemlins/club.gif[/img]5[img]/images/graemlins/diamond.gif[/img]7[img]/images/graemlins/club.gif[/img]
Checks to the cutoff who bets $10. Hero raises to $30. Villain cold calls in the small blind, folds to cutoff who thinks for a while then folds.

Turn ($84): T[img]/images/graemlins/heart.gif[/img]
Villain checks, hero bets $70, villain calls quickly.

River ($234): T[img]/images/graemlins/spade.gif[/img]
Villain pauses then checks. He has about $150 left behind. What do you do?