I recommend avoiding details and shading the piece until its fully sketched in
you can blend charcoal with a piece of tissue if you use your fingers it will leave prints
if you are in the process of shading place a piece of paper between your hand and the paper to avoid smuging
you can use a slice of bread to remove the graphite like a stretch eraser
This is probably a joke but I'll answer anyway
By 'cheeks' they mean buttocks so by "making them clap" is referring to them being so big/thick that they clap or make noise when you walk or move around or something.
I probably got played lol but whatever
Where’s a photo or the choices ?