I had a seat mate in math class that would do that, and sneaky eat during lecture. She brought an extra for me sometimes. Flavored noodles are a game changer.
My best guess is its for the same reason as the howler monkey. That's his War Face. It's an active display against all other beta male challengers to show Trumps dominance.
Make some content! Find a community that you enjoy and try to grow it. Fucking steal from reddit and bring it here! Add to the discourse.