New to table, no reads. Bet the turn or take a free card?

Party Poker 0.50/1 Hold'em (6 max, 5 handed) FTR converter on zerodivide.cx

Preflop: Hero is UTG with K[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">Hero raises</font>, <font color="#666666">2 folds</font>, SB calls, <font color="#CC3333">BB 3-bets</font>, <font color="#CC3333">Hero caps</font>, SB calls, BB calls.

Flop: (12 SB) A[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, BB checks, <font color="#CC3333">Hero bets</font>, SB calls, BB calls.

Turn: (7.50 BB) 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, BB checks, Hero checks.

River: (7.50 BB) 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">SB bets</font>, <font color="#CC3333">BB raises</font>, Hero folds, SB calls.

Final Pot: 11.50 BB