2nd nuts in 50PLO

I need some advice on what I should do in these 3 hands. River play especially or if I just stick it in on flop on hand 3 for example.

Hand1
Submitted by : eekmice

PokerStars Game #34635026518: Omaha Pot Limit ($0.25/$0.50 USD) - 2009/10/28 20:20:18 PT [2009/10/28 23:20:18 ET]
Table Thia III 6-max Seat #1 is the button
Seat 1: Zitrac ($60.05 in chips)
Seat 2: Hero ($71.95 in chips)
Seat 4: run409 ($50.45 in chips)
Seat 5: kristaboo ($12.25 in chips)
Seat 6: abefroman777 ($45.10 in chips)
Hero: posts small blind $0.25
run409: posts big blind $0.50

Holecards
Dealt to Hero
kristaboo: calls $0.50
abefroman777: folds
Zitrac: calls $0.50
Hero: raises $2 to $2.50
run409: calls $2
kristaboo: calls $2
My JJAQ said, "u had fck all - very well played putz"
My JJAQ leaves the table
Zitrac: calls $2

Flop (Pot : $10.00)

   
mr_Flush joins the table at seat #3
Hero: bets $9
run409: calls $9
kristaboo: calls $9
Zitrac: folds

Turn (Pot : $37.00)

   
Hero: checks
run409: bets $12
kristaboo: calls $0.75 and is all-in

PokerStars Game #34633968424: Omaha Pot Limit ($0.25/$0.50 USD) - 2009/10/28 19:50:11 PT [2009/10/28 22:50:11 ET]
Table Goto II 6-max Seat #2 is the button
Seat 2: badnewz-va ($95.20 in chips)
Seat 3: buzztime 123 ($55.40 in chips)
Seat 4: Hero ($66.30 in chips)
Seat 5: OminousTS ($120.45 in chips)
Seat 6: Soonline ($60.40 in chips)
petcat25 leaves the table
FrankS86 joins the table at seat #1
buzztime 123: posts small blind $0.25
Hero: posts big blind $0.50

Holecards
Dealt to Hero
OminousTS: folds
Soonline: folds
badnewz-va: folds
buzztime 123: calls $0.25
Hero: raises $1 to $1.50
buzztime 123: calls $1

Flop (Pot : $3.00)

   
buzztime 123: checks
Hero: bets $2.50
buzztime 123: calls $2.50

Turn (Pot : $8.00)

   
buzztime 123: checks
Hero: bets $6
buzztime 123: calls $6

River (Pot : $20.00)

   
buzztime 123: bets $19.05

PokerStars Game #34635144565: Omaha Pot Limit ($0.25/$0.50 USD) - 2009/10/28 20:22:36 PT [2009/10/28 23:22:36 ET]
Table Gallia VII 6-max Seat #1 is the button
Seat 1: XmAnTrY ($78.15 in chips)
Seat 2: jan3594 ($30 in chips)
Seat 3: Hero ($119.50 in chips)
Seat 4: FrankS86 ($101.95 in chips)
Seat 5: Ca$hHomie ($74.20 in chips)
Seat 6: vegasfreak74 ($42.85 in chips)
jan3594: posts small blind $0.25
Hero: posts big blind $0.50

Holecards
Dealt to Hero
FrankS86: folds
Ca$hHomie: calls $0.50
vegasfreak74: folds
XmAnTrY: calls $0.50
jan3594: calls $0.25
Hero: checks

Flop (Pot : $2.00)

   
jan3594: checks
Hero: bets $1.90
Ca$hHomie: folds
XmAnTrY: raises $3.10 to $5
jan3594: folds
Hero: calls $3.10

Turn (Pot : $12.00)

   
Hero: checks
XmAnTrY: bets $8.50
Hero: calls $8.50

River (Pot : $29.00)

   
Hero: checks
XmAnTrY: bets $16

Hand 1: Raising preflop should only be to set mine. I think check raising is kinda safe here if u have a read but c/c flop.

Hand 2: Pot pot pot all the way. As played, I guess its a call.

Hand 3: Check the flop. Betting the flop has reversed implied odds. As played fold the flop.

hand 1 is really annoying, really not sure what to do with out reads. Against normal opponent I think i check call and see what happens on river, but probably call.

hand 2 You only gotta be right 33% of the time, I'd call w/o reads.

hand 3 Without reads, i'd find it hard to fold, call given pot odds.

As future reference, i'd make sure to take notes on opponents since PLO is very very player dependent even at lower stakes.

2 is a clear call i think
3 is a call given you called this far, might be a fold on previous street, this is a difficult hand, you need to know what he tries with naked Kd etc, but once you make it to the river its an auto call.
1 i would call turn and react afterwards

call hand 2 and make a note of his betsize

Isn't hand 1 a pretty clear bet flop bet turn + river and fold turn and river if raises? At least if opponent is half decent and not to bluff/overaggro.