Preflop I think it is standard, flop cbet. Problematic is turn puts one of the worst card because hands like AK, KQ beats me now, when I bet again pockets like 99, 88 fold here, not many worse hands than my call so I decide check and opponent pot size bet here...
In this situation I fold, opponent is unknown
PokerStars, Hold'em No Limit - $0.01/$0.02 - 6 players
Replay this hand on Pokeit - https://pokeit.co/public/6258PqOuA/r
UTG: $1.53 (77 bb)
MP: $1.65 (83 bb)
CO: $2.17 (109 bb)
BU: $2.41 (121 bb)
SB: $1.86 (93 bb)
BB (Hero): $2.00 (100 bb)
Pre-Flop: ($0.03) Hero is BB with J♥ J♦
UTG raises to $0.06, 1 fold, CO calls $0.06, 2 players fold, Hero 3-bets to $0.30, 1 fold, CO calls $0.24
Flop: ($0.67) 2♣ 7♥ T♥ (2 players)
Hero bets $0.30, CO calls $0.30
Turn: ($1.27) K♠ (2 players)
Hero checks, CO bets $1.23, BB (Hero) folds
Total pot: $1.27 (Rake: $0.04)
CO wins $1.23