Oh! Hu's not really familiar with centaurs but what's important is that he's obviously not human. There's a second or two of surprise (the happy kind) but she doesn't seem to mind at all.

"It is true, with four feet you have much better footing...and humans can't carry nearly as much as a horse could. But they do like to compete and show off, so that does make sense!" Does she believe it? Doesn't matter, she's not going to suggest he has no idea what he's talking about.

"But...what is 'swole?'" She knew many languages, but slang was always tricky.