A is for Anticipation
First: I am no aircrew, just a moderately frequent flyer. If for example condensation in the cabin is fairly normal under observable and even predictable conditions, then perhaps anticipation of the passengers' nervousness might he helpful?
Condensation and smoke LOOK the same at first glance - OK , so condensation doesn't smell. You have passengers from all walks of life, levels of education and experience in your craft. To you, these machines are a familiar workplace and you have been trained to handle them and understand their peccadilloes.
We haven't! A simple anticipatory introduction when conditions look as if condensation might occur would not take too much time and effort - perhaps at the beginning/end of the safety chat?
You chaps keep these thing in the air and put them down safely nearly ALL the time. Hell, we look out of the window and to us it;s as close to magic as we are ever going to get.
Help us out here - some verbal balm sparingly applied would go a long way!