River bet here in blind war? 20NL

[Fulzgold]

They always talk about value betting thin at these stakes so what do you do here on the river? if you say bet, do you call a raise?
$0.1/$0.2 No Limit Holdem
5 players
Converted at weaktight.com

Stacks:
UTG (<font color="#0000cc">$18.39</font>)
CO (<font color="#0000cc">$29.60</font>)
BTN (<font color="#0000cc">$15.96</font>)
Hero (<font color="#0000cc">$31.40</font>)
BB (<font color="#0000cc">$123.86</font>)

Pre-flop: ($0.3, 5 players) Hero is SB A[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/heart.gif[/img]
<font color="#777777">3 folds</font>, <font color="#cc0000">Hero raises to $0.7</font>, BB calls $0.5

Flop: 7[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/heart.gif[/img] ($1.4, 2 players)
<font color="#cc0000">Hero bets $1</font>, BB calls $1

Turn: 9[img]/images/graemlins/club.gif[/img] ($3.4, 2 players)
<font color="#cc0000">Hero bets $2</font>, BB calls $2

River: J[img]/images/graemlins/heart.gif[/img] ($7.4, 2 players)