passive or aggressive? overpair, flop is capped by villain
 

Villain has just sat in, no reads.

How would you guys play this hand? All streets in question.

Is the 3-bet okay?

I didn't really want to bet the turn b/c I was afraid of another check raise by him, but I'm think thats too passive.

Ultimate Bet 1/2 Hold'em (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is UTG with K[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/diamond.gif[/img]. MP posts a blind of $0.25.
<font color="#CC3333">Hero raises</font>, <font color="#666666">3 folds</font>, BB calls.

Flop: (5.40 SB) 5[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">BB raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">BB caps</font>, Hero calls.

Turn: (6.70 BB) 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero checks.

River: (6.70 BB) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets</font>, Hero calls.

Final Pot: 8.70 BB

Re: passive or aggressive? overpair, flop is capped by villain
 

I would bet the turn and call down if raised. As played I would raise the river and likely fold to a 3bet. I can't see a set capping the flop and trying to c-r the turn very often.

Re: passive or aggressive? overpair, flop is capped by villain
 

You definitely have to bet the turn after he checks to you, and if you get c/r-ed you can either call down or fold. This is where a read makes this decision either right or wrong. With absolutely no reads on the guy though, I would probably call him down and then take a note on his actions.

Re: passive or aggressive? overpair, flop is capped by villain
 

Bet the turn fearlessly. If you get egg on your face by his check raise get him right back by folding the river u/i.