Generally, Sizoku views everyone as an inferior intellectually (I think the only exception to this was Scorpius), so she will act that way: haughty, know-it-all, exasperated at the constant stupidity of others. When she gets caught acting above herself - and she will because she really only has book-smarts and very little actual world experience - she tends to react flippantly and attempts to cover to still make herself look good. Now, when she wants something from someone she can exercise a little more patience, making suggestions and asking questions to gently steer conversation toward getting what she wants.

There are basically three main motivations for why Sikozu does anything: curiosity, survival and her loyalty to the Kalish. For big decisions it's the latter two, which often go hand in hand (she needs to survive in order to carry out her part in the Kalish revolution), but for everyday sorts of things it's curiosity. She loves to learn, does so extremely quickly and then will want to show that new knowledge off. It's a great tool if you're going to be playing her in a dressing room or panfandom type of game to balance the fact that she'll think she's surrounded by morons.