LOL! I have never thought about that. People won't need who can no longer hide their gestures and facial expressions at poker tables can be comfortable while playing. Unfortunately, the mask cannot close the eyes. And the real truth always comes from the eyes.
Correct usage would be to wear glasses with the mask, not breathing in the virus but having it exposed to the eyes is going to result in an infection.
LOL, face with glasses and mask at the poker table in Las Vegas casino, can not imagine that. Would it help guy to win? Being such equipped he will remain impermeable not only to virus but to glances of the opponents gambling on cards.