A well-known Japanese Internet chat thing is the use of "w," which translated into "lol." It comes from warau or a similar word, for laugh. Can tack on multiple wwwww, which led to 草 becoming shorthand for big laughs, because multiple W's look like grass!
I'm still plugging away. Still struggling with listening comprehension a bit. Noticed I'm having a focus problem, so I've started looking up ADHD strategies for active listening, see how that goes.