I sat down about an orbit ago and have no stats or reads on UTG. What's your play?

Party Poker No-Limit Hold'em, $ BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG ($95.25)
UTG+1 ($48.75)
MP1 ($60.35)
MP2 ($57.68)
CO ($49.39)
Hero ($44.50)
SB ($49.50)
BB ($50)

Preflop: Hero is Button with 3, 3. SB posts a blind of $0.25.
UTG calls $0.50, UTG+1 calls $0.50, MP1 calls $0.50, 2 folds, Hero calls $0.50, SB (poster) completes, BB checks.

Flop: ($3) 6, 3, 9 (6 players)
SB checks, BB checks, UTG bets $10.97, UTG+1 folds, MP1 folds, Hero ???