In position facing 1/2 pot sized bet on river

Pacific Poker - $0.02 NL - Holdem - 7 players

No reads again, sorry. I had two hands on this guy.

SB: $2.19
BB: $2.14
UTG: $1.72
UTG+1: $2.82
MP: $4.10
CO: $0.99
Hero (BTN): $2.00

SB posts SB $0.01, BB posts BB $0.02

Pre Flop: ($0.03) Hero has 9:club: 9:spade:

fold, UTG+1 calls $0.02, fold, fold, Hero raises to $0.10, fold, fold, UTG+1 calls $0.08

I raised here to see a heads up flop with 9's in position

Flop: ($0.23, 2 players) J:heart: 2:club: 5:diamond:
UTG+1 checks, Hero bets $0.23, UTG+1 calls $0.23

Full pot continuation bet, was to have the greatest chance of him folding continuing my aggression from before. Plus he checked to me and he only limped at first pre flop which suggested quite a bit of his range was trash.

Turn: ($0.69, 2 players) T:heart:
UTG+1 checks, Hero checks

He calls my flop bet which gets me worried at this point, I'm now suspecting hes trying to slowplay a set here.

River: ($0.69, 2 players) A:heart:
UTG+1 bets $0.34

What should I of done here?

With three overcards and a possible flush out there, folding the river is fine.

I probably wouldn't c-bet this flop. It turns our hand into a bluff when it still has value. Quite often a delayed c-bet works good in this spot. IE, if you check back the flop and he leads the turn, then you can fold for cheap, but if he checks to you on the turn, your hand is often good and you can bet for value.

edit:
I don't think c-betting is bad. You don't have to tho.

Why c-bet the pot when the only real outs are wheel outs? 1/2-2/3rds risks less money when you're behind and still gets your opponent to fold when you are ahead.

The wetter the board (up to a point) you should be more likely to potbet.

As for the turn checkbehind. That's standard.

As for the river, without reads, I think it's a pretty easy fold.

Go street by street and put him on a range for each decision he makes.

As stated, I think it would be better to either check the flop or C-bet 50%.

He called a 5XBB raise PF and a pot-sized bet on the flop. Unless you've got a specific read on this guy regarding the river bet, I would strongly suspect that you are beaten.

i agree, dont cbet flop here, you get called at 2 nl by most of its range, AQso+, 66-1010, any Jx, and for sure sets and overs. just try to hit your 9 or get cheap SD.

Thank you for your opinions. This hand has made me realise that I do not understand how and when to use a c-bet properly. I will study it further. :)