Standard line here? Or am I stupid?
 

Party Poker No-Limit Hold'em, $ Hero (9 handed) converter

CO ($47.19)
Button ($51.47)
SB ($18.52)
Hero ($49.95)
UTG ($32.53)
UTG+1 ($57.65)
MP1 ($50)
MP2 ($57.65)
MP3 ($43.85)

Preflop: Hero is BB with 9[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img]. SB posts a blind of $0.25. MP1 posts a blind of $0.50.
<font color="#666666">2 folds</font>, MP1 (poster) checks, MP2 calls $0.50, <font color="#666666">2 folds</font>, Button calls $0.50, SB (poster) completes, Hero checks.

Flop: ($2.50) Q[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">Hero bets $1.5</font>, MP1 folds, MP2 calls $1.50, Button calls $1.50, SB folds.

Turn: ($7) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets $4</font>, MP2 folds, Button calls $4.

River: ($15) A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $6</font>, Button calls $6.

Final Pot: $27

Re: Standard line here? Or am I stupid?
 

Why not $2 on the flop? $3?

Re: Standard line here? Or am I stupid?
 

Bet strong or slowplay. The middle of the road is the worst place to stand. With 5 opponents here and hero out of position I suggest jamming it pretty hard. Overbet the pot, $3.

Given the way you played it I would be incline to check the river. Villain didn't raise the river so I guess he had QJ.