[jjacky]

tough to play this hand.

if he is a habitual bluffer or someone who likes to semi bluff raise on a flush draw twice, i would consider to call him down.
against an opponent who bluffs / semibluffs on the flop from time to time i would bet the turn and fold to a raise.
against a rock i would consider folding on the flop and probably check/fold the turn.

without any reads i would chose option 2 (lead the turn and fold to a raise).