All the things a smile could say

All the things a smile could say

could also be said with the eyes. 
i’ve heard people say that they try to
replace their smile
with a hand gesture, 
but that turns out to be an awkward
understanding, one which only the
person performing the gesture
actually understands.
Most say they use words to replace a smile.
Though, words are always
only place-holders, besides
couldn’t they just announce:
I’m smiling behind this mask.
Of course when they say they use words
to replace a smile they mean tone
and aren’t tones also heard
through the eyes?