NL20, 3 lost SDs

These are my worst SD losses of today's session.

Take a look if there's something I could've done differently.

HAND 1 - when turn card came, I decided to check/call to showdown if he raises reasonable amount.
I thought this was a bad beat, but after thinking about it now... It's not hard to figure out I don't beat many hands here... You take a look, I'm overthinking this:

Submitted by : NiTE

GAME #1151282618: Texas Hold'em NL $0.10/$0.20 2008-09-05 19:43:21
Table "TURBO" Knightsville
Seat 1: godiswithme ($9.76 in chips)
Seat 3: Hero ($31.49 in chips)
Seat 5: tough007 ($19.70 in chips) DEALER
Seat 6: lucaf80 ($9.10 in chips)
Seat 10: naaach ($31.57 in chips)
lucaf80: Post SB $0.10
naaach: Post BB $0.20

Holecards
Dealt to Hero
godiswithme: Call $0.20
Hero : Raise $1.00
tough007: Fold
lucaf80: Fold
naaach: Call $0.80
godiswithme: Call $0.80

Flop (Pot : $3.10)

   
naaach: Bet $0.77
godiswithme: Call $0.77
Hero : Raise $5.00
naaach: Call $4.23
godiswithme: Fold

Turn (Pot : $13.87)

   
naaach: Bet $6.93
Hero : Call $6.93

River (Pot : $27.73)

   
naaach: Bet $18.64
Hero : Allin $18.56

Summary
Total pot $63.93 Rake $1.00
naaach: Shows
naaach: wins $63.93

Hand 3 - his huge river bet shows that he feels he is strong, and it's almost always a 9 here. But I had the feeling it isn't proper to fold there.
+ Show Spoiler +

hand 1 i fold turn

hand 1 fold pf, as played probably fold river, your almost never good here (or turn). you can pretty much see it by his bet sizing, betting really small when behind and betting "huge" (for him) when hit.

hand 2 looks pretty standard. good odds to call even tough you're not too trhilled

hand 3 dunno

You don't really learn anything on the turn of hand 2 by just calling. I prefer to raise to at least find out where you stand/rep a stronger hand + you're not really going to enjoy having to call the river especially if they up their bet to 1/2 the pot and beyond T_T.

hand 1 fold pf even if u do taht u totally overplayed it
hand 2 is standart
hand 3 fold river believe ur opponents its 20nl.

both hand 1 & 3 when there's a lowcard flop and the turn brings an overcard generally your opponents will slow down if they only have top pair.

hand 1 after he calls your flop raise you should just c/f if you dont improve, he's not betting the turn with worse there.

hand3 I think it's better to check the turn, as played you're basically turning your hand into a bluff but if you really think you have the best hand there you should shove the river, players at this level will have a much wider calling range than betting range so by c/c'ing you're losing just as much when you're beat but he's checking behind a ton of hands that you have beat.

WTF with the fold PF comments?!

KT on cutoff 6max -.-