Somehow, I got to the river... VB? 50NL

[Kasane]

Here's a typical situation where I might be starting to overthink my opponent's ability to fold. From a couple rounds, villain seems to be loose passive.

I figure there's a good chance that they hold a mid pair after the turn check behind, just about anything else reasonable will be a better hand than my 2pr except AQ. They will probably fold anything I beat, so do I value bet or not? Let them bluff at it if I check? I'm repping exactly what I have if I bet.

Full Tilt Poker
$0.25/$0.50 No Limit Hold'em Ring Game
5 Players
LegoPoker Hand Converter

<font color="black">Stack Sizes</font>
Hero (BB): $71.9
UTG: $46.90
CO: $44.20
BTN: $43.80
SB: $19.8

<font color="black">Preflop:</font> K[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/spade.gif[/img] ($0.75, 5 players)
<font color="red">UTG raises to $1</font>, CO folds, BTN folds, SB folds, <font color="red">Hero raises to $4.50</font>, UTG calls $3.50

<font color="black">Flop:</font> Q[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] ($9.25, 2 players)
<font color="red">Hero bets $6</font>, UTG calls $6

<font color="black">Turn:</font> Q[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] [J[img]/images/graemlins/heart.gif[/img]] ($21.25, 2 players)
Hero checks, UTG checks

<font color="black">River:</font> Q[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/heart.gif[/img] [K[img]/images/graemlins/spade.gif[/img]] ($21.25, 2 players)
Hero ...