Pacific, $0.25/$0.50 No Limit Hold'em Cash, 4 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.

SB: $28.69 (57.4 bb)
Hero (BB): $58.28 (116.6 bb)
CO: $60.35 (120.7 bb)
BTN: $28.48 (57 bb)

Preflop: Hero is BB with J J
CO raises to $1, 2 folds, Hero raises to $3.75, CO calls $2.75

Flop: ($7.75) T T 6 (2 players)
Hero bets $2.66, CO calls $2.66

Turn: ($13.07) 7 (2 players)
Hero checks, CO bets $6.18, Hero calls $6.18

River: ($25.43) 2 (2 players)
Hero checks, CO bets $15.26, Hero calls $15.26

The opponent is reg, but I don't have many hands on him.
What is the best line in this situation? Perhaps I could bet more on the flop or bet turn and check/call river...?