25NL Flush on Turn how to proceed?

[Esau fos]

Sometimes I find myself in situations where I realy don't know what would be the optimal way to proceed. Just like the situation in this hand.
my questions are:
- how would you proceed against different type of players in these type of situations?(all suit flop and hitting flush on turn)
- Should I play this hand on the flop different?

I have no reads

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

Stack sizes:
UTG: $26.45
UTG+1: $36.82
Hero: $25.44
Button: $24.74
SB: $29.01
BB: $24.65

Pre-flop: (6 players) Hero is CO with A[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/spade.gif[/img]
2 folds, <font color="#cc0000">Hero raises to $1</font>, <font color="#cc0000">Button raises to $3</font>, 2 folds, Hero calls.

Flop: 7[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/spade.gif[/img] ($6.35, 2 players)
Hero checks, <font color="#cc0000">Button bets $4</font>, Hero calls.

Turn: 9[img]/images/graemlins/spade.gif[/img] ($14.35, 2 players)
<font color="#cc0000">Hero...</font>