Out of purely idle (I think) curiosity, if one were to mug up in preparation for conversational Lojban, which area ought one to be concentrating on? Attitudinals? Gismu? That is, it's quite easy to single out the bits one doesn't need at all, such as mekso and complicated tense stuff, but less obvious (to me) which are the most useful bits for Get By in Lojban. --And.