Well you'd have to find someone that is willing to learn. Or doesnt gave a method of communication established.
Vyde- most of what he knows is self taught he'd learn on his own suringbhis spare time. Embarrassed about his barelyvthere education.
Ten- knows it and can cheat when learning things, if he's reading he can skip ten seconds ahead every second so he'd learn something new exceedingly fast.
Vaihl- genius intellect probably learn it over night while assembling a few gizmos in the lab or during boring business meetings. Known to multitask.
Empathy- she feels emotion primarily and can usually guess everything from there. Also is very good at reading body language, not to mention First has a 'loud' brain. Firsts ability make a much stronger connection even blocking out most stimuli she'd get a good handle on Firsts mood.
Silic- would rather take advantage of the 'lost in translation' thing they've got going. And charades are more fun.
Nyoka- definitely open to learning as long as it's not frustration.
Geo- hands first a stick and conjures sand.
Hightide- runs at the first sign of hard work and learning.
Lollipop- hires someone to translate.
Moleculo- stares in confusion then looks as if he has an idea "I feel your desire for justice!" Lol
Em is pretty good at controlling her own emotions and others. To the point where she can really screw with someone if she's pissed off. Instant riot just touch people and send them into murderous rages. As for her learning she's taking courses in psychology and various social sciences, also works as Darwin councilor, when she says "I know how you feel", she really does.
- Reactions will always be different, just colored by personality.
And yeah an angry First is a scary thing, and indestructible 18 year old with super strength and speed.