Let's see if I improved my play with 33

[C-Dog]

Villain is new to the table, and I dont have any datamine stats on him either. Should I just bet/call the river?

Party Poker 1/2 Hold'em (6 max, 5 handed) converter

Preflop: Hero is MP with 3[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">Button 3-bets</font>, SB calls, <font color="#666666">1 fold</font>, Hero calls.

Flop: (10 SB) J[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, Hero checks, <font color="#CC3333">Button bets</font>, SB calls, Hero calls.

Turn: (6.50 BB) 5[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, Hero checks, <font color="#CC3333">Button bets</font>, SB folds, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">Button 3-bets</font>, <font color="#CC3333">Hero caps</font>, Button calls.

River: (14.50 BB) 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">Button raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">Button caps</font>, Hero calls.

Final Pot: 22.50 BB