Flop and turn are played well, river I like your bet and I'd be calling the river, can't fold for the odds and how the hand played out.

It looks like they have a draw and your river bet which is small may induce them to bluff shove and is why I'd call. If I was on the river I'd have made the bet smaller to $4-5 hoping they'd shove over the top.

If they turn up with 99 or a set, I just berate them in chat for the way they played it.

The flop situation here is a little different to the previous posts. We should probably call flop in this case. There are two key differences compared to the previous posts.

1. We have position
2. It's a HU pot, not multi-way.

On the turn we should bet for value/protection, but we should likely reduce our turn bet-sizing significantly since we are not committed.

River, probably a check/back. If we do bet it's a bet/fold, despite the fact that we get insane odds.

I like the flop defend, even though villain does look a bit nitty. It's a texture many players will bluff even without equity. As was already noted above, if you're looking for spots to defend against flop raises then being in position and heads up is a massive help.

Flop and turn look standard. I would always bet this turn but probably smaller, maybe $3.50. Villain's range for checking won't be very strong, and most of the time you're only really getting protection instead of decent value.

The river looks like a check back to me. Villain would bet his two pair combos on the turn so it's unlikely that we've just counterfitted him and suddenly want more value. As played I would fold. Tight micro players won't be bluffing here often enough.

This is quite an interesting hand. Pre and flop C-bet are obviously pretty standard. I don't think we can ever consider folding to the flop raise here in a heads up pot but reraising would be a pretty huge overplay so I like just calling.

Turn is interesting that villain has chosen not to fire themselves. I would expect any of his decent value that beats us to be betting again here so I like betting ourselves for value here. If villain goes for a second check raise we are in a bit of a gross spot and I think we need to fold but this would not be too common a scenario I think.

River is a tough spot. It's very difficult to see how we are beaten here but I'm also not sure what villain can call us with either. We have displayed quite a lot of strength and villain has stuck with us, I feel I probably just check this back here as villain has taken such an unorthodox line here that it is difficult to assign him a reasonable range. As played, I don't think I can fold. We are getting too good a price IMO and there are potentially some missed flush draws that villain opts to bluff here but I'm obviously not going to be shocked if we are somehow beat.