No-Limit Hold'em, $1.00 BB (6 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

BB ($20)
Hero (UTG) ($104.50)
MP ($116.65)
CO ($9.50)
Button ($123.60)
SB ($197.20)

Preflop: Hero is UTG with 10, 10
Hero raises $3.50, 2 folds, Button calls $3.50, 2 folds

Flop: ($8.50) 10, K, A (2 players)
Hero bets $7, Button calls $7

Turn: ($22.50) J (2 players)
Hero bets $16, Button calls $16

River: ($54.50) 6 (2 players)
Hero ???

villain was 20/16/3
Any point on betting river here, maybe b/f $20? The thing is that villain doesn't seem that stationary ... I think he would fold often to aggression, but maybe call AT/AK/AJ ...