6max: How to bet draws

[XST]

Can someone please give me the run down on betting draws aggressively because my timing with it really sucks. Should I do it on villain's with a high agression factor? What type of boards should I look for? etc..

Here is a situation with a 14/12/3 villain. Would it be better to just call behind. Don't ask me what I was doing calling the pfr here because I was steaming at the time :P.

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

SB ($24.80)
BB ($33)
UTG ($25.45)
MP ($14.65)
CO ($31.60)
Hero ($27.50)

Preflop: Hero is Button with 6[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">CO raises to $0.75</font>, Hero calls $0.75, <font color="#666666">2 folds</font>.

Flop: ($1.85) 9[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">CO bets $1.25</font>, <font color="#CC3333">Hero raises to $3</font>, <font color="#CC3333">CO raises to $13</font>, <font color="#CC3333">Hero.....