QQ: Aggression in the face of passivity

[elbuddha]

PokerStars 0.25/0.50 Hold'em (9 handed)

Preflop: Hero is UTG with Q[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/heart.gif[/img].
<font color="CC3333">Hero raises</font>, <font color="666666">4 folds</font>, <font color="CC3333">CO 3-bets</font>, <font color="666666">3 folds</font>, <font color="CC3333">Hero caps</font>, CO calls.

Flop: (9 SB) K[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/club.gif[/img] <font color="blue">(2 players)</font>
<font color="CC3333">Hero bets</font>, CO calls.

Turn: (5.50 BB) K[img]/images/graemlins/club.gif[/img] <font color="blue">(2 players)</font>
<font color="CC3333">Hero bets</font>, CO calls.

River: (7.50 BB) 4[img]/images/graemlins/spade.gif[/img] <font color="blue">(2 players)</font>
Hero checks...

My read on villian after only a couple orbits was not terribly loose, maybe a capacity for aggression.

Aggressive play, reckless play, or not aggressive enough? Seeking balance...