In a world still grappling with the massive change wrought by Covid-19, we are all adapting to new ways of life.
Physical distancing, working from home and Zoom calls are all making huge changes to human behaviour but perhaps the most visible sign of change is the facemask.
The accessory may be seen less often on the streets of New Zealand than in many countries but it is fair to say that we would all be familiar with how they work to prevent the spread of the virus from an infected person.
So in the US, currently facing an onslaught of cases and deaths and where the general public has been advised to wear masks, there is surely no excuse for getting it wrong.
Vice President Mike Pence visits the molecular testing lab at the Mayo Clinic, sans mask. Photo / AP
Meanwhile, elsewhere in the US, Vice President Mike Pence issued a rare mea culpa: Pence said he should have worn a face mask during a visit last week to Minnesota's Mayo Clinic.
Pence's failure to wear a mask violated the clinic's guidelines and drew significant criticism.