You can refer to Karlton with the he/she pronouns.
When I said enthusiastically, "I'm loving the view," my eyebrows shot up in surprise.
Once upon a time, it wasn't until he pointed out the window and said, "That one over there is a crimson Star" that he noticed he was being praised. He should have ignored or forgotten about it. They aren't as common as other animals because of their scarcity and short lifespans. Every single one of them culminates in an unbelievable display of victory. However, it is a surprising relief in the short term.