a read I'm willing to bet my stack on.

I put him on overs (AQ, AK most likely)

Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) converter

UTG ($19.9)
Hero ($28.3)
CO ($27.45)
Button ($52.5)
SB ($18.25)
BB ($23.25)

Preflop: Hero is MP with 2:diamond:, 2:heart:. SB posts a blind of $0.1.
1 fold, Hero calls $0.25, CO raises to $1, 3 folds, Hero calls $0.75.

Flop: ($2.35) 3:club:, T:diamond:, 6:heart: (2 players)
Hero checks, CO bets $1, Hero raises to $3, CO calls $2.

Turn: ($8.35) 4:heart: (2 players)
Hero bets $6, CO calls $6.

River: ($20.35) 7:diamond: (2 players)
Hero calls $18.30 (All-In), CO folds.

Final Pot: $38.65

Results in white below:
Hero has 2d 2h (one pair, twos).
Outcome: Hero wins $38.65.