Pull it well up your nose and then put your glasses on top of it. works for me.
Yes I think inside all folk should have masks as a thougthful gesture to others. Sadly there are some who do not care “I’m jabbed I’m alight” they say. “if you don’t like it don’t go shopping” or as one charmer said to me, when I pointed out they could still get it AND pass it on “You will just have to suck it up”