In Passengers, the android Arthur remarked on Aurora's beauty when he first saw her:
"Who's the lovely lady?"
According to science, androids or robots don't have any feelings.
Then how could Arthur give a beauty remark when it saw Aurora?
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The first person and probably the best one to comment on a character is the actor himself, I presume. Please find this comment by Michael Sheen himself in the given link below where he explains how the Android character Arthur was programmed to be pleasant and well mannered just like an experienced bartender would be. So for your ques there are two possiblities:
Affable Arthur is programmed to please, explained Sheen from Los Angeles, whether it’s shaking the perfect Manhattan, telling a joke or offering a sympathetic ear. He and director Morten Tyldum (The Imitation Game) spent considerable time discussing how Arthur would be programmed to make his customers happy, anticipating their needs and learning from them as he went. But human nature is a tricky thing for a robot to puzzle out.