99 vs river A bet - Fold/Raise?

[tob1n]

Hi guise, here's another: i was playing against a fish not long ago (75/25 in 25 hands, steal% 42, agg% 55). i know the board is way to drawy... ideas?

$0.01/$0.02 No Limit Holdem
HoldemManager
6 Players
Hand Conversion Powered by weaktight.com (http://weaktight.com/)

Stacks:
UTG Petula111 ($3.97)
UTG+1 tob1n ($1.86)
CO osp2010 ($1.35)
BTN lordorc1 ($2)
SB Pro Vemac ($2)
BB DarkJP ($4.82)

Pre-Flop: ($0.03, 6 players) tob1n is UTG+1 :9h: :9s:
Petula111 calls $0.02, tob1n raises to $0.10, 4 folds, Petula111 calls $0.08

Flop: :6s: :as: :td: ($0.23, 2 players)
Petula111 checks, tob1n checks

Turn: :8s: ($0.23, 2 players)
Petula111 bets $0.10, tob1n calls $0.10

River: :ah: ($0.43, 2 players)
Petula111 bets $0.22

[babyonboard]

flop chkbck ok, on turn u have to call 10 to 33 so u have to be good once in 4 to breakeven. maybe ok to call here. rvr is a fold(25 hand is not a reasonable sample in aggression pct).

[castor11]

maybe turn fold, river fold.

[tob1n]

yeah, i overestimated the strength of the pocket 99, called, the guy held 66. :S