NL50: Call raise preflop and flops TPGK. Villain cbets.

[Aquadougs]

Villain: 20/13/3 (103)

Party Poker, $0.25/$0.50 NL Hold'em Cash Game, 6 Players
LeggoPoker.com - Hand History Converter

Hero (CO): $65.67
BTN: $65.63
SB: $51
BB: $38.41
UTG: $61.86
MP: $44.75

Pre-Flop: Q[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/spade.gif[/img] dealt to Hero (CO)
UTG calls $0.50, <font color="red">MP raises to $2.50</font>, Hero calls $2.50, 4 folds

Flop: ($6.25) 3[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/club.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">MP bets $4</font>, Hero...


Was my call ok preflop?
What about postflop? I use to raise here to protect my hand, but now i called. What is best most of the time?