I've been seeing this line a lot..

[IowaSkinsFan]

I've done this line pretty much each time and it's worked against it.

PokerStars Game #6822490170: Hold'em No Limit ($0.50/$1.00) - 2006/10/29 - 21:50:48 (ET)
Table 'Makhaon IV' 6-max Seat #4 is the button
Seat 1: j1n8025 ($351.30 in chips)
Seat 2: redgrape ($117.20 in chips)
Seat 4: sIrEikeland ($118.90 in chips)
Seat 5: a1chemist ($119.10 in chips)
Seat 6: Ggod ($89.80 in chips)
a1chemist: posts small blind $0.50
Ggod: posts big blind $1
*** HOLE CARDS ***
Dealt to redgrape [Kc Qs]
j1n8025: calls $1
redgrape: raises $4 to $5
sIrEikeland: folds
a1chemist: folds
Ggod: folds
j1n8025: calls $4
*** FLOP *** [Ah As Jd]
j1n8025: checks
redgrape: bets $6
j1n8025: calls $6
*** TURN *** [Ah As Jd] [7h]
j1n8025: bets $9
redgrape: raises $22 to $31
j1n8025: folds
geowal21 joins the table at seat #3
redgrape collected $39.50 from pot
*** SUMMARY ***
Total pot $41.50 | Rake $2
Board [Ah As Jd 7h]
Seat 1: j1n8025 folded on the Turn
Seat 2: redgrape collected ($39.50)
Seat 4: sIrEikeland (button) folded before Flop (didn't bet)
Seat 5: a1chemist (small blind) folded before Flop
Seat 6: Ggod (big blind) folded before Flop

[Happy Jones]

Nice play. This call-bet screams I dont have an Ace.
Just gotta make sure hes not a complete fish (capable of folding) and not a tricky shark.
If had called then checked the turn would you fire another round?