How does the poet use figurative language in "We Wear the Mask"

Personification

"We wear the mask that grins and lies."

Symbolism

The mask is a symbol of hidden identity.

Apostrophe: an exclamatory passage in a speech or poem addressed to a person (typically one who is dead or absent) or thing (typically one that is personified).

"We smile, but, O great Christ our cries."