<human>: I'll be studying abroad in Port Elizabeth, South Africa from July to November.  I'm very excited for it, but I'm also really nervous.  I'm most nervous about unknowingly doing something or acting in a way that makes people dislike me or think I am rude/annoying/stupid etc.

So my question for reddit is this:  what are some actions, styles, behaviors that would cause South African people to view me negatively?  Especially things that a visitor might not realize.  I know this a broad question...here are two examples.  In some European countries people wearing white shoes, or Nike or athletic apparel are considered low class/poor.  In Japan you should hand and receive a business card with both hands, not just one.  I love wearing white shoes and sometimes wear Nike so I wouldn't think to view it as low class.  I usually take a business card with one hand cause it's easier.  If I went to these places, such behaviors would have negative outcomes.
So yeah, I want to be a respectful traveler/visitor, but every culture has different assumptions and interpretations of good behavior.  If there is anybody from South Africa that could share some of those assumptions with me I'd be very grateful!

Can you condense the text into three sentences or less?
<bot>: I want to make a good impression during my time in South Africa, what things should I do or avoid to prevent being hated as an ignorant foreigner?