How am I supposed to get my crush to take me seriously?

Okay, I've had a crush on this guy since I met him my freshman year. We talked a bit then but not all that much. This year we worked on a one act play together and it didn't help my crush in the least bit. Since then I've talked to him a couple times in the halls but that's it. How do I get his attention long enough to show him I like him? He's not much of a texter either so I'm a tad stumped.
How am I supposed to get my crush to take me seriously?
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