K6s

I would steal sometimes this flops, only need to work like 1:9 to be profitable and a call from a 8x can still loose when u catch a K or bluff him if higher cards come out.

Played that way, i fold the turn most times if UTG has a tight range and its passive, with no stats or info i call the turn most times and might fold the river some if he bets again.

first mistake is calling preflop , raise or fold .. id prefer fold.

second bet flop

as played you raise turn.

Hi! Preflop I could go either way, call or raise. Just calling is better if

a) their limping range is too tight for you to valueraise, this would be quite rare; or
b) the BU is a fishy guy likely to come along with your raise

I like the flop check, it's kind of a bad hand to bluffbet with. I would much prefer to bluffbet with 97, T9 there but even with those taking free card could be nice as well. With K:c6:c you often have 3 outs for a King and a backdoor flushdraw.

On the the turn it's a clear call for me. Raising would not make much sense, if he's bluffing, you don't want him to fold and force the others out who could peel with some weak showdownvalue. Also it could be that someone has trips, I think there are lots of Jx in their limping range.

I would not fold though, you split versus many kings and beat QT, T9, spade draws, 8x, bluffs. And if somebody happens to have slowplayed Jx, you have an easy fold if they raise on the turn or river.

I'd rather prefer betting K6 against 2 but very often the loose passive fishes they don't bet good draws, neither they do sometimes with 8x and they use to slowplay trips and quite frequently they peel at least once with Ax. Betting against 3 on a board where their limping ranges have hit quite well, check is the only reasonable play. On the Turn you should just call. Your kicker sucks and he might have been checked trips. No reason to raise, due to your weak hand and the small pot size. But folding is out of question though. Call Turn, call any River.