Good spot to steal the pot? (200$ NL 6-max)

[Kjell201]

Only played 15ish hands at the table and no stats on them, but overall the whole table seems to like to hang along until the river but fold there if they dont hit anything good.

Prima 200$ NL. 6-max

Dealt to Kjell201: 8[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/spade.gif[/img]

PreFlop
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puttoputto : Posts small blind 1.00
Kjell201 : Posts big blind 2.00
alfatron : Calls for 2.00
Addeman : Folds
loveHT : Raises for 4.00
puttoputto : Calls for 3.00
Kjell201 : Calls for 2.00
alfatron : Calls for 2.00

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Flop: 16$, 4 players
T[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/diamond.gif[/img]
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puttoputto : Checks
Kjell201 : Checks
alfatron : Checks
loveHT : Bets 4.00
puttoputto : Calls for 4.00
Kjell201 : Calls for 4.00
alfatron : Calls for 4.00

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Turn: 32$, 4 players
3[img]/images/graemlins/diamond.gif[/img]
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puttoputto : Checks
Kjell201 : Checks
alfatron : Checks
loveHT : Checks

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River: 32$, 4 players
6[img]/images/graemlins/club.gif[/img]
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puttoputto : Checks
Kjell201 : ???


Good spot to try and steal the pot? preflop raiser doesnt seem to like his hand. sb checks again so he probably has nothing and rivercard is a total blank. The only guy who might have a hand is the guy to my left (alfatron) if he maybe checked turn to checkraise.

If you decide to bluff, how much, and why?
Also if you change anything else preflop (fold?), flop (bet out) and turn and how you respond to different actions, and why.

Thanks