Villain is 19/9 over ~100 hands. Hasn't done anything particularly memorable.

Edit: Maybe this should be in beginner's circle, not FR. My bad.

$0.05/$0.1 No Limit Holdem
9 players
Converted at weaktight.com

Stacks:
UTG ($10.50)
UTG 1 ($19.75)
MP1 ($14.30)
Hero ($14.45)
MP3 ($10.20)
CO ($10.00)
BTN ($9.65)
SB ($6.65)
BB ($5.90)

Pre-flop: ($0.15, 9 players) Hero is MP2
3 folds, Hero raises to $0.4, 3 folds, SB calls $0.35, 1 fold

Flop: ($0.9, 2 players)
SB bets $0.4, Hero???

What I'm asking is, what do you do here on this flop?

Don't immediately dismiss it as stupid or whatever, because I've asked a bunch of people and I'm getting all kinds of different responses. Some favor a flatcall, some prefer a raise. Some want to just try to get it all in right here. It's turning out to be more worth dissection than I initially thought, maybe some players as bad as me will get something from it. So please, all you super experienced players, give some of them a chance to consider it before you throw in a one line response and essentially insult me for asking.

Following action and results in white.
Hero calls $0.4

Turn: 5s ($1.7, 2 players)
SB checks, Hero bets $1.2, SB goes all-in $5.85, Hero calls $4.65

River: Kh ($13.4, 2 players)

Final Pot: $13.40
SB shows: Ks Kc
Hero shows: Qh Ad

SB wins $12.75 ( won $6.1 )
Hero wins $9.4368957093138E-16 ( lost -$6.65 )