You can play it many ways.

If you are first to act, and someone raised preflop, I like to check to the raiser, as he may make a continuation bet. You can choose to reraise from there or call and lead or push the turn depending on the range of hands I put him on.

If the pot was unraised you have to bet it or you are just giving drawers a free card. Plus you need to build the pot size so you can overbet the turn or river.