Caring out loud about a subject nobody else likes takes more nerve than acting bored.

Indifference is the safe position, because nothing can be taken from you if you never admitted to wanting it. That is the whole appeal of acting bored, and it is why it is everywhere. Saying you genuinely like something unpopular puts you on the hook, and everyone in the room knows it. The nerve is in the exposure, not in the subject.

Say the true thing about something you like this week without softening it first. No preamble about how it is weird, no joke to get ahead of the joke. Some people will find it strange, and the ones who also care will finally find you.