NL 200 blind battle trouble

[pureCra2z]

PokerStars No-Limit Hold'em, $2 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP3 ($106.50)
CO ($221.25)
Button ($195.65)
Hero ($80)
BB ($59.45)
UTG ($252.90)
UTG+1 ($191)
MP1 ($227.30)
MP2 ($198)

Preflop: Hero is SB with A[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/heart.gif[/img].
<font color="#666666">7 folds</font>, <font color="#CC3333">Hero raises to $4</font>, <font color="#CC3333">BB raises to $10</font>, Hero calls $6.

Flop: ($20) 2[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $7</font>, BB calls $7.

Turn: ($34) 7[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, BB checks.

River: ($34) 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">BB bets $12</font>, Hero ???

I wanted to keep the pot small on the turn.
What should i do against villian with no read?
What about villian with 50/20/2

I was 16/6/3 in 100 hands at that table.

[Bavid Denyamine]

Fold the river, no real value to call. With no read just dump it. He's practically committed his stack to the hand. Even against a loose player you can't beat anything but a bluff, and he could be bluffing with the best hand.

(EDIT: If you did fold the river, I like the play on every street. Take a stab on the flop then shut down. Hope a 5 peels off, otherwise dump to a bet.)