How do you play this: Villain is 35/7 and been kinda passive post flop but still shows PFA of 2.5 over 50 hands. Doesn't seem too aggressive despite the numbers but I am multi-tabling and may have missed some hands.

Hold'em NL ($0.25/$0.50)
Seat 5 is the button.
Seat 1: OleGumby ($101.95 in chips)
Seat 2: _relko_ ($54.86 in chips)
Seat 3: HERO ($53.80 in chips)
Seat 4: Beatbox72 ($91.20 in chips)
Seat 5: indsdress ($30.45 in chips)
OleGumby: posts small blind $0.25
_relko_: posts big blind $0.50
----- HOLE CARDS -----
dealt to HERO 9 9
HERO: calls $0.50
Beatbox72: folds
indsdress: raises to $3
OleGumby: calls $2.75
_relko_: folds
HERO: calls $2.50
----- FLOP ----- 8 4 6
OleGumby: checks
HERO: bets $7.50
indsdress: folds
OleGumby: calls $7.50
----- TURN ----- 2
OleGumby: checks
HERO: bets $15
OleGumby: raises to $91.45 and is all-in
HERO: folds