Sorry it is just sooooo situational.
For instance -
If we get flatted pre flop by tight players I assume small pair set mining. Because usually tight players will re-raise pre if they have drawing hands or big pairs AQ ak , jj+. But the flat call
tells me small pair set mining consciously.
Then it's all about paying attention. If the board is dry and he check calls or check raises. Basically anything but folds. I'm suspicious . If we don't improve its best to exercise some pot control.
A big red flag is if this passive play from our villian thus far in the hand, turns aggressive.
Say on the turn he bets a decent amount . Alarms are goin off in my head. But if we decide to call this and he fires again on the river- our overpair is beat a lot of the time.
Passive play is a lot more likely from the typical tight player. Them calling our later street bets is more likely than beginning to lead out against us on the turn/river.
Fish on the other hand, man at these stakes they will show up with anything and might pay you off with second pair.
I've been known to lay down AA when 3bet 4bet wars preflop break out between me and a tight villian - once he decides to call my reraise and a K hits the flop. You just know.