50NL TPTK blind battle

[lag0n]

This is probably a pretty standard hand but here goes.

Villain is around 42/13 (50 hands)
No history with him.
I've played tag, haven't done anything fancy.

Party Poker No-Limit Hold'em, $0.50 BB (6 handed) Party Poker (http://www.flopturnriver.com/reviews/Online-Poker-PartyPoker.php#converter) Converter Tool from FlopTurnRiver.com (http://www.flopturnriver.com) (Format: 2+2 Forums)

BB ($48.42)
UTG ($55.36)
MP ($55.13)
CO ($49.25)
Button ($54.24)
Hero ($42.54)

Preflop: Hero is SB with K/images/graemlins/club.gif, A/images/graemlins/club.gif.
<font color="#666666">4 folds</font>, <font color="#CC3333">Hero raises to $2</font>, BB calls $1.50.

Flop: ($4) A/images/graemlins/diamond.gif, Q/images/graemlins/spade.gif, 2/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $3</font>, BB calls $3.

Turn: ($10) 4/images/graemlins/heart.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $7</font>, <font color="#CC3333">BB raises to $14</font>, Hero...


raise, call, fold? what about river if I call?

[NeverScurred]

Knowing villain's aggression factor would be really nice here. Against an unknown I guess I call and c/c a reasonable river bet, but if he's particularly passive postflop then I could see folding here.