Keeping pots small

[KCFire105]

I've recently read many articles from notable authors who like small pot poker. Their articles never expand to include how/when this is done.

If you (at times) practice small pot poker, my questions are-

1- Best ways to keep pot small (in and out of position).
2- Range of hands you play small pots with, and in what situations.
3- If this is only possible in heads up or 3-way max?