NL 25 - 2 hands made it to showdown - Critique?

[automaton_22]

Please critique my play on these two hands.
+EV?
Spewy?
Not aggressive enough on turn?

Not much in the way of reads, but Villains did not seem to be donkish.

<u>HAND ONE</u>

Party Poker
No Limit Holdem Ring game
Blinds: $0.10/$0.25
5 players
Converter

Stack sizes:
UTG: $18.64
CO: $27.37
Button: $27.07
Hero: $27.34
BB: $31

Pre-flop: (5 players) Hero is SB with 8[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/spade.gif[/img]
<font color="#cc0000">UTG raises to $0.5</font>, 2 folds, Hero calls, BB calls.

Flop: 3[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/spade.gif[/img] 2[img]/images/graemlins/spade.gif[/img] ($1.5, 3 players)
Hero checks, BB checks, UTG checks.

Turn: 5[img]/images/graemlins/spade.gif[/img] ($1.5, 3 players)
<font color="#cc0000">Hero bets $1.43</font>, BB folds, UTG calls.

River: A[img]/images/graemlins/heart.gif[/img] ($4.36, 2 players)
<font color="#cc0000">Hero bets $4</font>, <font color="#cc0000">UTG raises to $8</font>, Hero calls.


<u>HAND TWO</u>

Party Poker
No Limit Holdem Ring game
Blinds: $0.10/$0.25
5 players
Converter

Stack sizes:
UTG: $40.96
CO: $35.62
Button: $23.63
SB: $15.35
Hero: $26.99

Pre-flop: (5 players) Hero is BB with 9[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/spade.gif[/img]
UTG calls, CO folds, Button calls, SB calls, Hero checks.

Flop: A[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/club.gif[/img] ($1, 4 players)
SB checks, <font color="#cc0000">Hero bets $0.95</font>, UTG folds, Button calls, SB folds.

Turn: K[img]/images/graemlins/club.gif[/img] ($2.9, 2 players)
<font color="#cc0000">Hero bets $2</font>, Button calls.

River: 8[img]/images/graemlins/heart.gif[/img] ($6.9, 2 players)
Hero checks, <font color="#cc0000">Button bets $4</font>, Hero calls.

Results:
Final pot: $14.9