Typically:
{M-x package-install RET hyperbole RET}
{M-x hyperbole-mode RET}
is enough to install the stable, V8 version of Hyperbole to try out.
If you are more advanced and want to try out the in-development version
that corresponds to the git tip of the Hyperbole master branch, this is available
as a package from the elpa-devel archive. To setup to install from there, see
this article: