I run into this situation often when playing micros. There's an open limp from MP and 1 or 2 callers. I'm in the BB with a trash hand that hits the flop. I can adjust to my opponents, but I have no baseline from which to adjust.
This is a fictional hand.
_______________________________________
MP, BT and SB all limp.
Hero in BB has
pot is 4BB
Flop comes out
SB checks
Hero? I feel like b/f is the best play here. I'm very happy to win the pot now and it seems easy to run away from a raise, but when MP or BT just calls is where I get really lost. It's hard to tell if I'm actually ahead here and there are so many bad turn cards for me, I don't know how I could ever be comfortable with this hand. Am I nearly always c/f'ing the turn?