Pre: Calling or threebetting here are both fine IMO, I don't have a particularly strong preference either way.

Post flop I would not change anything on any street. NEver folding at any point and betting or raising seems bad to me at any point here. Shame he gets there with the AT but these things will happen.

Pre is usually a call for me. The min raise here makes the SPR a little deeper which is great for small pairs.

The river is one of those spots where villain is either bluffing air or we're beat. If he wants to bluff then it's usually going to be a turn barrel rather than stabbing the river. Fish at these stakes as a general rule don't bluff showdown value including Ax most of the time so as we don't expect micro players to bluff frequently enough we should be able to make tight folds in spots like this.

We never worry about being exploited at these stakes, and we can save money by understanding that our money nearly always comes from value betting instead of bluff catching.

While I like your line bet/check/bet is rarely a bluff line of micros and the price you're getting isn't that amazing. I'd still call this by default, but tight fold might be better vs. some players.