I did have a hand I played pretty badly (villian is 50.6/8.8/0.81 after 91 hands, but I do believe the stats were a little skewed at the time the hand took place - maybe I only had about 30 hands on him)
My read at the time was that he is a very passive player and I thought he might have AK

$0.05/$0.1 No Limit Holdem
7 players
Converted at weaktight.com

Stacks:
Hero ($10.95)
UTG 1 ($5.60)
MP ($7.90)
CO ($1.85)
BTN ($7.90)
SB ($11.30)
BB ($15.70)

Pre-flop: ($0.15, 7 players) Hero is UTG
Hero raises to $0.4, 3 folds, BTN calls $0.4, 2 folds

Flop: ($0.95, 2 players)
Hero bets $0.65, BTN calls $0.65

Turn: ($2.25, 2 players)
Hero checks, BTN bets $2.25, Hero calls $2.25

River: ($6.75, 2 players)
Hero bets $2.75, BTN calls $2.75

Final Pot: $12.25

I don't know the right play here... usually I don't play AJ UTG but Renton's strategy guide suggests it.