{split by jyms- from Spenda's New Years Halp thread}

I'm usually a lurker here. I'm pretty much a beginner at NL. A common situation with me is that you are OOP and think you might be ahead. For example, suppose you have TPTK on the flop. You bet and you get called. The turn pairs the board or the third card to the flush or a straight arrives...you bet again and you get called. What do you do on the river? What considerations go into your decision on whether you should bet/fold, bet/call, check/call, check/fold?????