In 2011, I repeated a project I’d done in drama class in 8th grade (circa 2005).
The project was to photograph emotions by portraying them with facial expressions. I was reminded of it while thinking about how children these days don’t see as many faces with us covering them in masks. Nonverbal communication is vital for understanding language.
Ten years later, I decided to do the project once again. This time I've included the list of emotions and a brief etymology, mostly sourced from online search engines.
‘Shy: being reserved or having or showing nervousness or timidity in the company of other people.’
shy: Shy ‘timid, reserved’ [OE] goes back to a prehistoric Germanic *skeukhwaz ‘afraid’ (source also of English eschew and skew). It is generally assumed that shy ‘throw’  must have come from it, but the exact nature of the relationship between the two words is not clear. The original application of the verb seems to have been specifically to the throwing of sticks at chickens, and it has been suggested, not altogether convincingly, that its use alludes to the notion of a ‘shy’ cockerel that refuses to fight (there was an 18th- and early 19th-century slang term shy-cock which meant ‘cowardly person’).
(Adj.) late Old English sceoh "timid, easily startled," from Proto-Germanic *skeukh(w)az "afraid" (cognates: Middle Low German schüwe, Dutch schuw, German scheu "shy;" Old High German sciuhen, German scheuchen "to scare away"). Uncertain cognates outside Germanic, unless in Old Church Slavonic shchuti "to hunt, incite." Italian schivare "to avoid," Old French eschiver "to shun" are Germanic loan-words. Meaning "lacking, short of" is from 1895, American English gambling slang. Related: Shyly; shyness.