<p>Just like any teacher you had in high school, I would imagine a GSI would have favorites for sure. In fact, I would guess that GSIs are probably more prone to this considering their youth and inexperience compared to most full-time teachers. They’re human and they’re going to like a hardworking, polite, and engaging person more than a passive or rude person. I do believe, however, that GSIs do a good job of not letting this affect objective grading-- the same answer given by any student on an exam should be given the same score. However, if a GSI likes you, they are probably more likely to help you out, reply to your e-mails more quickly and with more thorough answers, and maybe even present to you more opportunities for extra credit or working to improve your grade. And I don’t think there’s anything wrong with this.</p>