Too passive with QQ?

[FlyingStart]

Villain is 21%/5%

PokerRoom No-Limit Hold'em, $1 BB (10 handed) internettexasholdem.com

UTG ($264.50)
UTG+1 ($52.80)
UTG+2 ($95)
MP1 ($101.40)
Hero ($99.30)
MP3 ($97.15)
CO ($35)
Button ($60.30)
SB ($68.70)
BB ($107.55)

Preflop: Hero is MP2 with Q[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">UTG raises to $5</font>, <font color="#666666">3 folds</font>, Hero calls $5, <font color="#666666">5 folds</font>.

Flop: ($11.50) J[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets $10</font>, Hero calls $10.

Turn: ($31.50) 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, Hero checks.

River: ($31.50) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets $15</font>, Hero calls $15.

Final Pot: $61.50

Should I have bet the turn? what about the river call?