AQ i get passive against unknown

[the machine]

1st hand at table

Full Tilt Poker, $0.50/$1 NL Hold'em Cash Game, 6 Players
LeggoPoker Hand History Converter

SB: $68.85
Hero (BB): $100
UTG: $80.55
MP: $110.30
CO: $96
BTN: $139.40

Pre-Flop: A[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/spade.gif[/img] dealt to Hero (BB)
2 folds, <font color="red">CO raises to $3.50</font>, 2 folds, Hero calls $2.50

Flop: ($7.50) T[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, <font color="red">CO bets $5.55</font>, Hero calls $5.55

Turn: ($18.60) Q[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero checks, <font color="red">CO bets $12</font>, Hero calls $12

River: ($42.60) 3[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, <font color="red">CO bets $15</font>, Hero calls $15


i felt he was weak on the flop but being OOP i thought c/r was bad because i cant call a 3b AI so it felt too spewy. so i decide to call. gin on turn but still bet call a raise sesms bad esp given how much hte board has changed.


do you play this any differently?