I apologize for not adding this earlier (I'm lazy & I have finals). I don't know how dramatically this impacts your river decision. I had observed villain. He had slightly overbet the pot on the flop a couple times when he had top pair on the flop. When he had called a raise OOP, he was not afraid to bet right into the pot for 2/3-3/4 pot bet and took down the pot each time (3 or 4 hands). Usually when villain checked, he'd checkcall a flop bet or checkfold, but never made it past the turn in those hands. Lastly, the hand that took place right before the hand in this post....

PokerStars Game #3343754774: Tournament #16561357, Hold'em No Limit - Level III (25/50) - 2005/12/15 - 20:01:47 (ET)
Table '16561357 2' Seat #3 is the button
Seat 1: rdrmike (730 in chips)
Seat 2: pietro5 (4440 in chips)
Seat 3: DaveAK (3685 in chips)
Seat 4: royal953 (1475 in chips)
Seat 5: rubytine (3250 in chips)
Seat 6: Rugstar (1080 in chips)
Seat 7: Hero (2185 in chips)
Seat 8: clarsonx (1210 in chips)
Seat 9: whatskillz (1450 in chips)
royal953: posts small blind 25
rubytine: posts big blind 50
*** HOLE CARDS ***
Dealt to Hero [X Y]
Rugstar: folds
Hero: folds
clarsonx: folds
whatskillz: calls 50
rdrmike: folds
pietro5: folds
DaveAK: folds
royal953: folds
rubytine: raises 225 to 275
whatskillz: calls 225
*** FLOP *** [6[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/club.gif[/img]]
rubytine: bets 2975 and is all-in
whatskillz: calls 1175 and is all-in
*** TURN *** [6[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/club.gif[/img]] [T[img]/images/graemlins/heart.gif[/img]]
*** RIVER *** [6[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/heart.gif[/img]] [5[img]/images/graemlins/club.gif[/img]]
*** SHOW DOWN ***
rubytine: shows [T[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img]] (a pair of Tens)
whatskillz: shows [T[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/diamond.gif[/img]] (two pair, Tens and Nines)
whatskillz said, "ty"
whatskillz collected 2925 from pot
rubytine said, "nh"
*** SUMMARY ***
Total pot 2925 | Rake 0


Results in white:

<font color="white"> I called, villain showed... AhJh? Bad call on my part? Either he was calling my flop bet w/ the intention of bluffing me on a later street, or he didn't know what he was doing, in which case, he might've done this same move w/ a Q or 99, that a competent player wouldn't. Thoughts? </font>