Lowkey obsessed with how in I Was a Teenage Abomination Gus learned how to high five from Luz and reacted to Eda ruffling Luz’s hair with “you don’t high five with your head,” and now in Clouds on the Horizon he has a short best friend handshake with Hunter that ends with them high fiving with their heads because it’s been implied that hitting Hunter’s hands, even with something as light as a high five, hurts him, so Gus accommodated for that despite how important being Accurate about Human Culture is to him.

The growth is subtle but it’s very real.