* dark sunglasses

*  a fake smile

*  a book, magazine, or newspaper

*  alcohol

*  drugs

*  the clown

*  a bully

*  a veil

*  technology

*  clothes

*  costume (party)

*  a cowboy’s bandana

*  social distancing

*  facial masque

*  a hoodie (sweatshirt)

*  hidden identities

* super heroes

* make-up

* COVID-19 ?