My opinion is regarding preflop, bet a lot when villain plays a lot of hands. Much to me is a size greater than 3x. If you don't know your opponent you can go from 2x to 2.5x being the CO.
Ideally, you have a hand that is used to steal the blinds. You don't want to play post-flop against tight villains, and if you play the flop you expect a flattering board texture as happened here.
The players who could call you from the blinds could be tighter or looser, but in this case the BB has played defensively when his action is to call, being OOP.
On the flop you have a big advantage and if your opponent behaves defensively you hope to get value from many reasonable hands that only called on the pre flop. Some of them could be: 44-55; 77-99. And you also have bluffs in your range like: AK; AQ; KQ (typical openings that could look for steals and then large bet sizes on the flop to get fold equity against a perceived weaker range).
When you check OTF your range is wider and quite possibly you will be losing money against this field of players.
On the turn your call is reasonable, but you should pay attention to BB's bets. With what rank does V start betting and if it is possible that he thinks that we are looking to catch his bluffs with dominated rank.
Generally the thought of micro stakes is: strong bet when you have a strong hand. Do not gamble when there are no values.
Now the flop bluffs (which you could have represented if you cbet) are a bit undervalued on the turn, because they don't block hands like straights for example. Therefore we are assuming that this V bets with medium pockets that definitely played passive preflop, like 77-TT.
Since we don't bet flop our range is a bit weak. However V bets on the river almost with a pot bet. And when we raise we will generally have more bluffs in our range, something that leaves us in bad shape when V seems wider.
If there is a hand to block, that hand is a full house. And the only hands to do it are: 22-33 and TT. Something totally reasonable when we are BU. While that we are blocking 6x worse in his range, which is a hand that ideally we should obtein at least one street of value.
Therefore if we play passive perhaps the best thing is to remain passive and simply call in the river. Unless you think V is a fish that could call you with hands of failed flush draws and pair, like AT; KT; QT; JT; T9. In which case it should go much higher to represent a wider range.
Greetings.
