what to do here?

Pacific Poker $10 No Limit Hold'em <font color="#0000FF">(8 handed)</font> link

Preflop: Hero is BB with 5[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/spade.gif[/img].
UTG calls, <font color="#666666">1 folds</font>, MP2 calls, MP3 calls, <font color="#666666">1 folds</font>, Button calls, <font color="#666666">1 folds</font>, Hero checks.

Flop: (11.00 SB) 4[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(5 players)</font>
Hero checks, UTG checks, <font color="#CC3333">MP2 bets</font>, MP3 calls, Button calls, Hero calls, UTG calls.

Turn: (30.50 BB) 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(5 players)</font>
Hero???