I haven't played NLHE, mainly a LHE player. The river line made me wonder... If the bet was much higher I'd have to let it go, but am I right to take the passive road on the river? He bet 1/8 the pot so I figure this was the cheapest way I can showdown. Any raise I make would only be called/reraised by a better hand or am I wrong with this logic?

PokerStars No-Limit Hold'em, $1.00 BB (9 handed) FTR converter on zerodivide.cx

MP3 ($92.50)
CO ($98.50)
Button ($114.30)
SB ($109.50)
BB ($50.35)
UTG ($118.75)
Hero ($39)
MP1 ($53.15)
MP2 ($141.55)

Preflop: Hero is UTG+1 with J, A.
1 fold, Hero calls $1, 4 folds, Button calls $1, 1 fold, BB checks.

Flop: ($3.50) 8, 3, J (3 players)
BB bets $2, Hero raises to $6, Button folds, BB calls $4.

Turn: ($15.50) 5 (2 players)
BB checks, Hero bets $8, BB calls $8.

River: ($31.50) K (2 players)
BB bets $4, Hero calls $4.

Final Pot: $39.50