Opponent: Unknown
Hero (SB): $3.69 (184.5 bb)
BB: $2 (100 bb)
UTG: $2.12 (106 bb)
MP: $1.82 (91 bb)
CO: $2.70 (135 bb)
BTN: $2.20 (110 bb)
Preflop: Hero is SB with J♦ J♠
2 folds, CO raises to $0.06, BTN folds, Hero calls $0.05, BB folds
Flop: ($0.14) 5♥ T♦ 6♦ (2 players)
Hero checks, CO checks
Turn: ($0.14) J♣ (2 players)
Hero bets $0.10, CO calls $0.10
River: ($0.34) 9♣ (2 players)
Hero bets $0.24, CO raises to $0.66, Hero ???
Normally people at this limit are quite honest, so this very much looks like a str8, but 2Ps are also possible, so would you call here against an unknown at this limit?