33 river bluff?

[hobbsmann]

Tthis is a 6 max hand that I played yesterday at the airport waiting for my flight and just wanted a check up. I posted this here as the situation isn't very specific to shorthanded play.

HJ opens, I call in the bb with 33.

flop (4.5 sb) 569r
I c/r, villain calls.

turn 9 (no flush draw)
I bet, villain calls.

river 6
I bet.

Obligatory river bluff or just check/fold?