Browsers interpret html formatting instructions in order to display a document as a:

in its most general sense, a fair use is any copying of copyrighted material done for a limited and “transformative” purpose, such as to comment upon, criticize, or parody a copyrighted work. such uses can be done without permission from the copyright owner.apr 4, 2013

yes you can very simple, click the heart and then click the follow requests button.