[Closed] Nl4 Jj Sb

Hand converted with online PokerStrategy.com hand converter:

Play hand

$0.02/$0.04 No-Limit Hold'em (6 handed)

Known players:
[tg]BB$1.94:///////;MP2$4.00:///////;MP3$5.60:///////;CO$2.31:///////;BU$3.98:///////;SB (Hero)$4.00:///////;[/tg]

Preflop: Hero is SB with J:d, J:h.
2 folds, CO raises to $0.12, BU calls $0.12, Hero raises to $0.44, BB folds, CO calls $0.32, BU folds.

Flop: ($1.04) 8:s, Q:c, 4:h (2 players)
Hero bets $0.49, CO raises to $1.87, Hero calls $1.38.

Turn: ($4.78) 9:s (2 players)

River: ($4.78) K:d (2 players)

Final Pot: $4.78.
Results follow:

Hero shows a pair of jacks(J:d J:h).
CO shows a pair of queens(Q:s 7:h).

CO wins with a pair of queens(Q:s 7:h).

I had no idea what I should be doing post-flop this hand..........