Just got to this table for about 2 orbits, no real reads on players. Villain has minraised about 3 pots already, though has not shown

PokerStars No-Limit Hold'em, $0.02 BB (6 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP ($3.38)
CO ($0.94)
Button ($3.32)
SB ($7.25)
Hero ($2.97)
UTG ($2.49)

Preflop: Hero is BB with 9, K.
UTG raises to $0.04, MP calls $0.04, CO calls $0.04, 2 folds, Hero calls $0.02.

Flop: ($0.17) 3, 2, 9 (4 players)
Hero bets $0.16, UTG folds, MP raises to $0.32, CO folds, Hero calls $0.16.

Turn: ($0.81) 6 (2 players)
Hero checks, MP bets $0.28, Hero calls $0.28.

River: ($1.37) 9 (2 players)
Hero bets $1, MP raises to $2.5, Hero hates life.

Does he have the boat or do we pay him?

At these stakes, if he min-raised with trash and managed to boat, pay him. His range of hands could be from an overpair, a lower 9, A9, a boat, or even a missed flush draw(low chance but anything can happen on micro stakes). Call, take notes if you lose, move on.

Hopefully he should be paying you. This is a worse 9 too often to pass up, if he has it, meh. I'm not folding this.

I do want to ask one question:

Why did you check turn but bet the river? If youc heck/called turn because you felt you were behind, the river didn't change anything. A set (now FH) or straight still beats you.

Just curious about your thought process.

Yeah, but he beats all other lower 2 pair hands. People do this a lot. It's generally a mistake, but they do this a lot.

I checked the turn to see where he was at with his hand. My thought was that since there was no real draw out on the board that if he had a set, he would check, and let me fire on the river, which I had done on 2 previous pots with no contest. So after playing at these stakes for a little bit of time, I have seen that play with sets. So I don't know if my thought process was correct, that is what I was thinking

No real draw? There were 2 hearts on the flop and there are a billion straight draws on the turn.

I'm going to postulate that since the villain called a raise PF and raised on the flop, he flopped a set, a combo draw or has overs. We beat enough of his range to call this river. Especially after the weird turn action.

Think this could be the reason I miss played this hand, I swear I thought it was a rainbow flop, I see what you mean with the straight draws on the turn. I guess I just had a fuse blow in my brain. I folded the river b/c there was nothing I thought I could beat. The turn I just misplayed (horribly)