I've found playing passively postflop when out of position can be very profitable. Here is a similar play. Largest pot to date!

FullTiltPoker Game #191124642: Table Folsom (6 max) - $2/$4 - No Limit Hold'em - 17:42:43 ET - 2005/08/20
Seat 1: chipdynamite ($655.30)
Seat 2: carp6773 ($559.65), is sitting out
Seat 4: JRSVC ($392)
Seat 6: andr3w321 ($463.20)
andr3w321 posts the small blind of $2
chipdynamite posts the big blind of $4
The button is in seat #4
*** HOLE CARDS ***
Dealt to andr3w321 [:Kc: :Ah:]
chipdynamite: c ya, nice playin wit ya
carp6773 stands up
swag sits down
JRSVC has 15 seconds left to act
swag adds $97.50
JRSVC folds
andr3w321 raises to $10
chipdynamite calls $6
*** FLOP *** [ :Ad:]
andr3w321 bets $14
chipdynamite raises to $62
andr3w321 calls $48
*** TURN *** [5s 3c Ad] []
andr3w321 checks
chipdynamite bets $144
andr3w321 has 15 seconds left to act
andr3w321 calls $144
*** RIVER *** [5s 3c Ad 7c] [:Kd:]
andr3w321 checks
chipdynamite bets $248
andr3w321 calls $247.20, and is all in
Uncalled bet of $0.80 returned to chipdynamite
*** SHOW DOWN ***
chipdynamite shows [3d 8h] (a pair of Threes)
andr3w321 shows [Kc Ah] (two pair, Aces and Kings)
andr3w321 wins the pot ($925.40) with two pair, Aces and Kings
*** SUMMARY ***
Total pot $926.40 | Rake $1
Board: [5s 3c Ad 7c Kd]
Seat 1: chipdynamite (big blind) showed [3d 8h] and lost with a pair of Threes
Seat 2: carp6773 is sitting out
Seat 4: JRSVC (button) didn't bet (folded)
Seat 6: andr3w321 (small blind) showed [Kc Ah] and won ($925.40) with two pair, Aces and Kings