Ok, this scenario is very annoying and im really not sure how to play it at all. This applies to fishy tables where there are like 4 and more callers on avg outside the blinds..

Lets say you start in the big blind with a random hand, 82o, and the flop comes up as 82J with 2 suited cards. You dont have position and i dont like going for a check raise (in case there is no bet to raise!) so i usually bet out the pot or 3/4 etc...

What gets me is when say, you bet and there are 2-3 callers and the turn brings that third suit to complete somones flush. You dont have position so if you bet out again, the size of the bet will have to be fairlly large thus paying off to some extent the flush people.
However, if you check, you are showing weakness at first but also more annoyingly, (and this is my main point), you let the straight draws and whatever else get a free card!
By the river you're stuck in a place where you dont know if they have a flush or not, dont know if they have even a pair, or anything at all!!
Im just really not sure what the play is in this situation and would love if you guys could enlighten me