[Off-topic text edited by Moderator.]

As far as offering someone a mask, the most I'd do might be to say "if you want a mask to wear, too, just ask me..up to you" I'd hope that the other passenger doesn't say "I am so offended that I'm going to smash your face in".

I think some other passengers might have been jealous. They looked at my mask and at least one tried to cover her nose with her hand for a long time. She didn't appear to be laughing but trying to make her own mask.

If I had a cold, I'd either not travel or wear my own mask, now that I bought a box. Next time, I'll carry two in case the return trip also has a cougher.