what film are you planning on using and where is it going to be processed? black and white, or color? and if black and white, is it anything other than kodak bw400cn or ilford xp-2?
look up how to change the metering method since i'm not familiar with this camera. if you're in shade, for example, you'd have to use something like "center weighted" metering and take one reading for the people and one for the background (IF its not too bright). then average them and add 1 f/stop. or you could meter off the subject then add something like 3 stops depending on film and scene.
regardless, you'll want to avoid extremes of light. dont put people in a shadow without using a reflector or flash, or you'll have properly exposed people, but they'll be floating in white.
biggest thing with film: always check your ISO and exposure compensation!!!!!!!!! i tend to bump my exposure comp on my digital cam by accident, so check those settings all the time.
make a list of functions and settings if this is the first time you've done more than point and shoot. if you bumped a button, be sure to check the top LCD.
mmmmm...what else...ill think of some things later...
oh...is this during the middle of the day ONLY? or will you be at it at sunset? with only a monopod you obviously cant shoot in really low light so film choice will be a consideration.