OK vs unknown?

[C-Dog]

No stats on Villain he is new to the table:

Party Poker 1/2 Hold'em (6 max, 5 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Preflop: Hero is SB with J/images/graemlins/heart.gif, Q/images/graemlins/heart.gif.
<font color="#666666">1 fold</font>, MP calls, <font color="#666666">1 fold</font>, Hero completes, BB checks.

Flop: (3 SB) 2/images/graemlins/heart.gif, J/images/graemlins/spade.gif, A/images/graemlins/spade.gif <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, BB calls, MP calls.

Turn: (3 BB) 5/images/graemlins/heart.gif <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, BB folds, <font color="#CC3333">MP raises</font>, Hero calls.

River: (7 BB) 3/images/graemlins/diamond.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, MP calls.

Final Pot: 9 BB


I just dont get the limping with Ace rag thing, so I always end up paying them off...

I figured I was going to call a river bet, so I might as well try the bet/fold line instead...