PokerStars No-Limit Hold'em, $2 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB ($93.40)
BB ($74.55)
Hero ($219.25)
MP ($285.90)
CO ($217.80)
Button ($209.25)

Preflop: Hero is UTG with J, J.
Hero raises to $8, 2 folds, Button calls $8, 2 folds.

Flop: ($19) Q, Q, 8 (2 players)
Hero bets $10, Button calls $10.

Turn: ($39) 3 (2 players)
Hero bets $20, Button calls $20.

River: ($79) 7 (2 players)
Hero checks, Button bets $60, Hero ????????


No reads, villain hasn't played a big pot, but has not been 3 betting at all. Hasn't seemed particularly aggressive.

Anyone think this is a bluff and call? =