How do I know if he’s interested in me?

Okay, so tonight I’m hanging with one of my guy friends that I’ve gotten close with on snap for a few months now, and we go to the same college campus. Originally when I met him, he wasn’t interested in anything right away but he was down to hang out sometime. It’s been a few months, we gotten closer, we message either pretty much all the time everyday and he even sends me goodnight texts whenever. Lately I’ve been feeling like I’ve been growing an interest in him and I really like him, and I feel like it could be mutual, but I’m not sure if he likes me just yet. I asked him to hangout because I wanted to potential tell him something (how I feel), and he agreed right away I guess. I’m also kinda nervous of how tonight is gonna go need some advice :)
How do I know if he’s interested in me?
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