[Izuku does find himself flustering at that distinction. He rubs his hair and nods. He does value Gaius' knowledge, skill and opinions so calling him sensei is kind of cool to him.]

That- If that's okay. Sensei...!

[And he does remember when he and Gaius had faced down a group of blood-thirsty orcs. Gaius had used his spear in a very skillful way. Maximizing that damage and controlling his reach and speed.]

I- I've never ridden a horse myself before. But I wonder if I should try using a spear sometime too. I wouldn't mind trying a few different weapons out. But using a sword... I think I'll start with that first.

[Gaius makes it sound really interesting, he wishes he could write all of this down!]