I flopped a full house. I tried to slowplay here, but didnt seem that anyone caught anything on the flop. How would you play to get the most out of this hand? Should I play anything differently? (PartyPoker NL $25) I had no read on this guy (almost sat down and quadtabling )

***** Hand History for Game 2545599095 *****
$25 NL Texas Hold'em - Tuesday, August 16, 15:39:55 EDT 2005
Table Table 37513 (Real Money)
Seat 1 is the button
Total number of players : 10
Seat 1: garnack ( $32.10 )
Seat 2: SpeedRaiser1 ( $7.15 )
Seat 3: schuckout ( $54.75 )
Seat 4: make_u_sick ( $55.70 )
Seat 6: BriDutremble ( $9.55 )
Seat 9: Dustehue1 ( $28.95 )
Seat 7: RobertLOL ( $26.70 )
Seat 5: msilvia9ac ( $13.43 )
Seat 8: IAmPotty ( $22.10 )
Seat 10: Suprnova1001 ( $25 )
SpeedRaiser1 posts small blind [$0.10].
schuckout posts big blind [$0.25].
Suprnova1001 posts big blind [$0.25].
** Dealing down cards **
Dealt to RobertLOL [ 9h 9s ]
make_u_sick folds.
msilvia9ac folds.
BriDutremble folds.
RobertLOL calls [$0.25].
IAmPotty calls [$0.25].
Dustehue1 folds.
Suprnova1001 checks.
garnack folds.
SpeedRaiser1 folds.
schuckout checks.
** Dealing Flop ** [ 6d, 9c, 6h ]
schuckout checks.
RobertLOL checks.
IAmPotty checks.
Suprnova1001 checks.
** Dealing Turn ** [ Qs ]
schuckout checks.
RobertLOL bets [$0.25].
IAmPotty calls [$0.25].
Suprnova1001 folds.
schuckout folds.
** Dealing River ** [ Kd ]
RobertLOL bets [$1.50].
IAmPotty calls [$1.50].
RobertLOL shows [ 9h, 9s ] a full house, Nines full of sixes.
IAmPotty doesn't show [ Ts, Qc ] two pairs, queens and sixes.
RobertLOL wins $4.40 from the main pot with a full house, Nines full of sixes.