I thought this was an interesting hand.

I get bet into in an unraised pot from the blinds by a relatively unknown player. It's unlikely he has a very strong hand since he's in the small blind, so I decide to make a raise bluff, but he calls quickly. On the turn, rather than make a substantial bluff, I made what was almost more of a value bet, as I know he probably can't call a big river bluff. If he raises, I fold immediately, but I don't really even mind if I get called, as this reinforces the idea that he's weak (next to folding), and actually makes my hand appear stronger. He calls, and I take it down on the river as expected:

PokerStars No-Limit Hold'em, $2 BB (6 handed) FTR converter on zerodivide.cx

MP ($240.25)
CO ($142.35)
Button ($113.95)
SB ($143.95)
BB ($193.95)
Hero ($184)

Preflop: Hero is UTG with A, 4.
Hero calls $2, 2 folds, Button calls $2, SB completes, BB checks.

Flop: ($8) 3, 2, 7 (4 players)
SB bets $6, BB folds, Hero raises to $18, Button folds, SB calls $12.

Turn: ($44) 9 (2 players)
SB checks, Hero bets $22, SB calls $22.

River: ($88) J (2 players)
SB checks, Hero bets $80, SB folds.

Final Pot: $168