how do you copy someone's quote and paste it above your response?

Use the quote button in the upper right side of the reply box.

It looks like this http://illiweb.com/fa/subsilver/icon_quote_en.gif

That will quote the whole post. If you want to just quote part of the post, you can delete the parts you don't want, but make sure you don't erase the brackets.
[

practice in this thread if you want

Thank You