live $1/2 NL full ring hawaiian gardens

[newber]

Live $1/2 NL full ring

Player A: $500 (small blind)
Player B: $240 (middle position)
Me: $650 (on button) (K6s)

Player A announced this was his last hand, and is an extremely loose and bluffing player.
Player B is a loose preflop and generally likes to call down after the flop a lot.
My own image is tighter, but capable of bluffing on draws or any two cards, I have played several times with both A & B.


Preflop: player A raises to $6, get 5 callers, I call with K6 spades on button.

Flop: ($30) 9s, 8s, 3c

player A bets $10, player B call, I contemplate for a while before calling
I put player A on some random gut shot straight draw, or complete air or small pocket pair. Player B I put on a pocket pair or possibly an 8.

Turn: ($60) 9s, 8s 3c, 3d

All check to me, and I check behind too.

River: ($60) 9s, 8s, 3c, 3d, 6d

Player A bets out $30, player B instantly calls , I think for a while before I call with my pair of 6’s.

I knew player A was completely bluffing, but player B I put him on either pair of 8’s, 77, 55, 44, 22, 76, 56, most likely im hoping he doesn’t have the 8


Analyze my play on all streets, thanks
I think my main error was on the river, im not too sure.