\documentclass{testsuite}
\usepackage{fontspec}
\usepackage{xcolor}
\begin{document}
\huge
\fontspec{EB Garamond Italic}                       very \\
\fontspec[CharacterVariant=5]{EB Garamond Italic}   very \\
\fontspec[CharacterVariant=5:0]{EB Garamond Italic} very \\
\fontspec[CharacterVariant=5:1]{EB Garamond Italic} very \\
\fontspec[CharacterVariant=5:2]{EB Garamond Italic} very \\
\fontspec[CharacterVariant=5:3]{EB Garamond Italic} very
\end{document}