flopped set, call the river on drawy board?

[BetweenTheLines]

Ultimate Bet - No Limit Hold'em Cash Game - $0.10/$0.25 Blinds - 5 Players - (LegoPoker Hand History Converter)

SB: $5.75
Hero (BB): $30.91
UTG: $26.77
CO: $26.14
BTN: $32.46

Preflop: Hero is dealt 4[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/spade.gif[/img] (5 Players)
UTG calls $0.25, CO folds, BTN calls $0.25, SB calls $0.15, Hero checks

Flop: ($1) 4[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/heart.gif[/img] (4 Players)
SB checks, <font color="red">Hero bets $1.00</font>, UTG calls $1.00, BTN folds, SB calls $1.00

Turn: ($4) 7[img]/images/graemlins/spade.gif[/img] (3 Players)
SB checks, <font color="red">Hero bets $3.00</font>, UTG calls $3.00, SB folds

River: ($10) J[img]/images/graemlins/club.gif[/img] (2 Players)
Hero checks, <font color="red">UTG bets $6.00</font>, Hero calls $6.00

Pot Size: $22.00 ($0.88 Rake)

Early in the game, no reads no stats, how do you play it? Raise preflop? Fold river?