Humans expose their teeth a lot. Alloran looks more at eyes for expressions - it's not quite the same as in Andalites, but it's similar in some ways - and so he doesn't read this as a technical smile at all.

"Oh. Capitalism. Humans seem to live like that a lot. Most of you can't just walk away and live off the land and build housing in it, you are required to be more collective and for some reason that always means exclusion and neglect for some." Alloran imitates the human gesture, shaking his head. He doesn't think of what the Andalites have to be ashamed of, not in the moment.

"In Santa Barbara it isn't as stratified, perhaps, but the underclass was still dissatisfied. By promising them help and a society where wealth and sex and every other little thing didn't matter, the Yeerks had an inroad they wouldn't have in a more egalitarian society."