20NL: TPNK vs. UTG poster oop in a bloated pot on the river

[Genz]

Soo.. I think this hand is more interesting. Villain posted UTG, so he just joined the table and is probably new to the game and doesn't know much about it. I try to pick up the dead money preflop. The flop bet goes without saying, imo. On the turn, I was thinking: semi-bluff.
The river is the sweet spot in this hand. What do I do? c/c, c/f, crai, b/f, b/c? If you bet, how much? If you call, how much?

Carlos Poker 0.10/0.20, hand converted by the iPoker Converter at Talking-Poker

saw flop | <font color="#C00000">saw showdown</font>

Button ($19.89)
SB <font color="#C00000">Hero ($29.40)</font>
BB ($19.49)
UTG <font color="#C00000">UTG ($20.00)</font>
UTG+1 ($20.00)
CO ($31.32)

Preflop: Hero is in the SB with J [img]/images/graemlins/heart.gif[/img] 9 [img]/images/graemlins/heart.gif[/img]
UTG checks, 3 folds, Hero raises to 0.90, 1 fold, UTG calls 0.80.

Flop (2.20) T [img]/images/graemlins/heart.gif[/img] 6 [img]/images/graemlins/diamond.gif[/img] J [img]/images/graemlins/diamond.gif[/img]
Hero bets 1.60, UTG calls 1.60.

Turn (5.40) 7 [img]/images/graemlins/heart.gif[/img]
Hero bets 3.60, UTG calls 3.60.

River (12.60) 7 [img]/images/graemlins/club.gif[/img]
Hero ???