Villain is 57/7.6/2.5 over ~50 hands, no other read.

Party Poker No-Limit Hold'em, $ BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Button ($516.25)
SB ($675)
BB ($589.52)
Hero ($627)
MP ($1047.95)
CO ($625.73)

Preflop: Hero is UTG with Q, Q. SB posts a blind of $3.
Hero raises to $18, 2 folds, Button calls $18, 2 folds.

Flop: ($45) 4, T, 6 (2 players)
Hero bets $38, Button calls $38.

Turn: ($121) 5 (2 players)
Hero bets $74, Button calls $74.

River: ($269) 3 (2 players)
Hero checks, Button raises $385.25 (All-In), HalvSame ...

In retrospect I should've bet the turn harder. I wanted to keep the pot size small and get a call from a flush draw or Tx. Now that I am on the river I check to induce a bluff from missed spades. Wasn't expecting the 1.5x pot shove though. Standard call/fold?