If you’re nervous and think it will help- or if you have a cough or a runny nose - wear one, otherwise don’t. But at least get a real one. These silly little masks they’re handing out do virtually nothing (Except in the case of people actively coughing or sneezing, where they partially block the droplets) and are all psychological, so people who are truly terrified should invest in a real mask.
I was thinking of just getting some makeup and paint a mask on my face. ....hehehe. ...