bet it to keep them from betting me off it? simple 6 maxer

[D.L.M.]

villian ive seen is kinda tight passive. but i dont think its above him to make a stab at a weak river check. his calling standards selective though. he will fold alot of flops.
Poker Stars
Limit Holdem Ring game
Limit: $0.50/$1
6 players
Converter

Stack sizes:
UTG: $18.15
UTG+1: $27.05
CO: $17.25
Button: $7.25
SB: $61.60
lman: $32.70

Pre-flop: (6 players) lman is BB with K[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/heart.gif[/img]
2 folds, CO calls, Button folds, SB calls, <font color="#cc0000">lman raises</font>, CO calls, SB calls.

Flop: 8[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/heart.gif[/img] (6SB, 3 players)
SB checks, <font color="#cc0000">lman bets</font>, CO calls, SB folds.

Turn: 3[img]/images/graemlins/spade.gif[/img] (4BB, 2 players)
<font color="#cc0000">lman bets</font>, CO calls.

River: 6[img]/images/graemlins/diamond.gif[/img] (6BB, 2 players)

should i check/fold this one or bet it to keep him from betting it?