Sorry more beginner questions, when you say, push the film a stop or two what are you actually doing?
pushing film is when you shoot it at an e.i (exposure index) higher than its box iso rating. an example would be shooting a 100 speed film at iso 200 - this would be pushing the film 1 stop. pushing the film 2 stops would be shooting it at iso 400. when pushing film, development times need to be appropriately adjusted to compensate for the push. the downside to this is an increase in contrast and thus a decrease in tonal range. the opposite to pushing film is pulling it - where the film is shot at an e.i which is lower than its iso.
must make sure to incorporate the word “oeuvre” in my next critique.