you could also just take a piece of photo paper and empty your pockets on it, and
leave it out in the light while you give your chat ... and when you are done, you'll have
a lumesque print ... there really isn't enough UV to make a cyanotype inside with room light
but if you do your talk when there is daylight, you could also do the empty your pockets thing
on a sheet of sun print paper ... and if the talk-ees have trouble with deep rich prussian blue
you can make a weak bath of baking soda and water ( or washing soda and water ) and remove some
of the blue and make greens or yellows or ?
think of your darkroom talk as if you are doing show and tell to a bunch of 2nd graders ... adults are as curious as kids