I don't know how to seem passionate about my interests. I feel like theres not much to say except "It was a good movie/book/game". Also, when I mention a movie/book/game I like and someone asks me what the plot is about, I tend to freeze up and give an extremely bad explanation of the plot. Some of my favorite movies barely even have a plot, such as 120 days of sodom and a clockwork orange, so I feel extremely awkward talking about those.
I also draw and paint and, same with my other interests, I don't know what to say about it. I do show people some of the stuff i've drawn, but there's nothing to talk about beyond that.