Hand converted with online PokerStrategy.com hand converter:
$0.02/$0.05 No-Limit Hold'em (6 handed)
Known players:
[tg]BU(Hero)$5.30:///////;SB$10.49:///////;BB$1.83:///////;MP2$1.75:///////;MP3$6.71:///////;CO$5.61:///////;[/tg]
Preflop: Hero is BU with 4:s, 4:d.
MP2 folds, MP3 calls $0.05, CO folds, Hero calls $0.05, SB folds, BB checks.
Flop: ($0.17) 6:s, 2:h, 4:h (3 players)
BB checks, MP3 bets $0.10, Hero raises to $0.25, BB folds, MP3 calls $0.15.
Turn: ($0.67) 9:s (2 players)
MP3 checks, Hero bets $0.40, MP3 calls $0.40.
River: ($1.47) 3:c (2 players)
MP3 bets $1.05, Hero calls $1.05.
Final Pot: $3.57.
Raise bigger on the flop, $0.25 or $0.4 doesn't make a difference to most nl5 players they'll call all the same, but you miss a lot of value all the way if you start with a smaller raise. I'd also bet bigger on the turn closer to 3/4 pot. River donkbet screams "hey i have 5x", but the heart flushdraw missed and he could also have some weird two pairs, so i guess it depends on how likely you think he's to bluff/donk with worse in that spot. I'd probably call when in doubt.