Rule 1 of $2nl: Don't make hero-folds.

Example of why:

(oh and for the record, it's amazing how much my game has changed after looking at how I played this hand compared to how I would have played it now. This was back in early January when I was playing $2nl. Everything would have been done different, starting with preflop. Back then I didn't know much about equity, and wasn't very good at putting villains on ranges. I also sucked at bet-sizing. I really need to thank FTR for pointing me in the right direction with these things.)

Anyway here's me donking it up at 2nl:

PokerStars No-Limit Hold'em, $0.02 BB (9 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

MP2 ($1.81)
MP3 ($5)
CO ($4.23)
Button ($8.88)
SB ($1.10)
Hero (BB) ($5)
UTG ($3.20)
UTG+1 ($0.97)
MP1 ($1.32)

Preflop: Hero is BB with 8, 8
1 fold, UTG+1 calls $0.02, MP1 calls $0.02, MP2 calls $0.02, 1 fold, CO calls $0.02, Button calls $0.02, 1 fold, Hero bets $0.08, UTG+1 calls $0.06, MP1 calls $0.06, MP2 calls $0.06, CO calls $0.06, Button calls $0.06

Flop: ($0.49) 7, 9, 6 (6 players)
Hero bets $0.24, UTG+1 calls $0.24, 1 fold, MP2 calls $0.24, 1 fold, Button calls $0.24

Turn: ($1.45) 9 (4 players)
Hero checks, UTG+1 checks, MP2 checks, Button checks

River: ($1.45) 9 (4 players)
Hero checks, UTG+1 bets $0.65 (All-In), MP2 raises to $1.30, 1 fold, Hero folds

Total pot: $2.75 | Rake: $0.10

Results:
UTG+1 had A, 4 (flush, Ace high).
MP2 had 3, J (flush, Jack high).
Outcome: UTG+1 won $2.65

Yes he chased the J3 high flush draw when the board was paired and yes he raised it when the board was tripped (lol). I wouldn't have folded if I was heads up, bet out and got raised. At the time I didn't understand why the villain would raise after the player next to me pushed unless he had at least TT, so I just folded. Too bad I forgot this was 2nl haha.