Mime's Slip of the Tongue | final version

I know all kinds of faces
advice for them are bases:
though many races earth cover
still one is to discover
this race is clean and yet black
vanishing in night's light track
they flicker instead of words
behaving like silent birds
they lack all this subtle sense
no language they all use thence
their moves are all censored,oh
and their salaries still low
though it is for them no fun
mimes are so honest to run
so follow the mimes' all ways
use your hands in a phrase
expressing lies without lips
hand gestures cannot have slips