UTG is a complete unknown. I had a feeling he had a monster and that his flop bet of less than half the pot was just to try and tempt a call. How should I play this from here?
Poker Room skin
No Limit Holdem Ring game
Blinds: $0.05/$0.10
5 players
Converter
Pre-flop: (
5 players) Hero is CO with
UTG calls,
Hero raises to $0.5, Button folds, SB calls, BB calls,
UTG raises to $0.9, Hero calls, SB calls, BB calls.
Flop:

(
$3.6, 4 players)
SB checks, BB checks,
UTG bets $1.5, Hero ?????