oshi baiting

The practice of commenting under your oshi's media or mentioning them anywhere on social media with the end goal of attracting their attention.

Kyle: Dude, I'm going to make a PC-98 Touhou-style Remix of Riko's theme from Mystical Power Plant!
Chris: Hey, can you stop oshi baiting? You often do it by adding a huge number of hashtags to your posts so you can get attention. You also spam mention your favorite character in every reply on Twitter.
Kyle: But I like this character...