No reads on villain (2 hands and he was 0/0).
MP folds 68% to 3bet. UTG is fish.

The preflop call is scary, so I checked flop, now when he checks turn, check behind? but then what to do on river if villain bets 1/2, 1/3, 3/4, pot if river is non spade?

Comments on any street welcome!

No-Limit Hold'em, $2.00 BB (5 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

UTG ($157.25)
MP ($301.50)
Hero (Button) ($200)
SB ($439.40)
BB ($282.60)

Preflop: Hero is Button with 3, 3
UTG calls $2, MP bets $9, Hero raises $27, 1 fold, BB calls $25, 2 folds

Flop: ($66) 7, 4, 2 (2 players)
BB checks, Hero checks

Turn: ($66) J (2 players)
BB checks, Hero ???

Total pot: $138