So much depends on PF-play, position, bet size, board texture and villain... if you have some specific HHs you can show, might get some more helpful feedback.

In general, a Turn raise at micro's usually means something. And a minraise is harder to see as a "get the f-ck out of here" bet because it's small... and more likely to be read as a value bet that they think is small enuff that you HAVE to call.

This is in part where it becomes really important to try and define their range thru PF, flop and turn bet-sizing. Two generic examples...

1) You check from BB when everyone but Bu folds... you 1/2 PB he calls... you 1/3-1/2PB turn he min raises... Could be he just thinks your full of sh!t and has improved enuff (picked up TP maybe) or wants to try bluffing the A that just hit ('cause he read somewhere that's good to do...) and thinks you'll drop to the raise...

2) You 4x PFR from MP and get flatted by the Bu. You PSB it on a dry flop and he calls. You 3/4 bet the Tu and he min-raises you. If you only got TPTK, odds are good you're in deepsh!t and this is a value bet...

So I guess that's my long-winded way of saying "depends"...

I'll leave it with one more thought... I've spent a lot of $ over my first couple of 100K hands at micros NOT believing people's bets. Not a lot of sophisticated bluffers at the micros... there's ABC players (who will most likely have what they're representing...) and there are bad players (well, who just suck...) Play accordingly and you'll do fine.