2 pair on river, call or raise?

[poboy]

Villian is LAG pf but pretty passive postflop(44/22/1.2), also seems to enjoy chasing. Other than that no real reads.

PokerStars No-Limit Hold'em, $0.50 BB (9 handed) converter

CO ($19.20)
Hero ($51.05)
SB ($47.50)
BB ($19.15)
UTG ($63.95)
UTG+1 ($49.40)
MP1 ($53.85)
MP2 ($42.30)
MP3 ($21.25)

Preflop: Hero is Button with 8[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/club.gif[/img].
UTG calls $0.50, <font color="#666666">5 folds</font>, <font color="#CC3333">Hero raises to $2.5</font>, <font color="#666666">2 folds</font>, UTG calls $2.

Flop: ($5.75) K[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, <font color="#CC3333">Hero bets $4</font>, UTG calls $4.

Turn: ($13.75) Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, Hero checks.

River: ($13.75) 9[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets $6</font>, Hero ????



Comments on all streets?