Villain is 1 hand raised preflop over only 9 hands seen. Should have probably raised 5-6x preflop but it was EP and at start of session.

Since he smooth called my bet on the flop (3/4 of pot) I thought check/folding here was the best play. Wrong? And if so, why?

PokerStars Game #20477841906: Hold'em No Limit ($0.01/$0.02) - 2008/09/17 12:26:34 ET
Table 'Marfik' 9-max Seat #4 is the button
Seat 1: Speedwon5 ($4.71 in chips)
Seat 2: Deffs ($3.43 in chips)
Seat 3: Lady_B_Luck ($3.79 in chips)
Seat 4: copeton ($3.01 in chips)
Seat 5: Baggio16 ($1.98 in chips)
Seat 6: dan-neg47 ($4.76 in chips)
Seat 7: El_Gennaro ($1.15 in chips)
Seat 8: Kjellstedt ($3.27 in chips)
Seat 9: ponyfitness ($2.93 in chips)
Baggio16: posts small blind $0.01
dan-neg47: posts big blind $0.02
*** HOLE CARDS ***
Dealt to ponyfitness [Qs Qh]
El_Gennaro: folds
Kjellstedt: folds
ponyfitness: raises $0.06 to $0.08
Speedwon5: calls $0.08
Deffs: folds
Lady_B_Luck: calls $0.08
copeton: folds
Baggio16: folds
dan-neg47: folds
*** FLOP *** [Kd 9h Td]
ponyfitness: bets $0.24
Speedwon5: folds
Lady_B_Luck: calls $0.24
*** TURN *** [Kd 9h Td] [7h]
ponyfitness: checks
Lady_B_Luck: bets $0.42
ponyfitness: folds
Uncalled bet ($0.42) returned to Lady_B_Luck
Lady_B_Luck collected $0.75 from pot
Lady_B_Luck: doesn't show hand
*** SUMMARY ***
Total pot $0.75 | Rake $0
Board [Kd 9h Td 7h]
Seat 1: Speedwon5 folded on the Flop
Seat 2: Deffs folded before Flop (didn't bet)
Seat 3: Lady_B_Luck collected ($0.75)
Seat 4: copeton (button) folded before Flop (didn't bet)
Seat 5: Baggio16 (small blind) folded before Flop
Seat 6: dan-neg47 (big blind) folded before Flop
Seat 7: El_Gennaro folded before Flop (didn't bet)
Seat 8: Kjellstedt folded before Flop (didn't bet)
Seat 9: ponyfitness folded on the Turn