In NL and PL you need to watch pot size in relation to stack sizes. You do not want to build a pot with a mediocre hand, only to discover on the river that the size of the pot is so large that your (now) small stacked opponent(s) will be compelled to call with anything.

Maintaining pot control may get you to a cheaper showdown, if that's what you need. It will also give you more leverage to make a move on the pot during the hand if that's your choice. Think about it in terms of pot size in relation to stack size.

Simply stated pot control is knowing when and how much to bet based on number of opponents and their range of hands, flop texture (to shut out draws, etc.), existing pot size, and stack sizes. The variables are endless.

You do it carefully and with practice. Always.