Suggestion: Absolutely normal!
"Aren't you embarrassed?"
"No, why should i? Yes, people look at me funny, but i'm already used to that, they do that all the time. And yes, it's a bit cold when the wind blows. But didn't you know: Without clothes humans appear much less frightening to a 'Blibbering Humdinger'! And it's been ages since i have seen one..."
Maybe she insists that she's actually still dressed? Like, she's claims to be wearing some kind magic invisible underwear "Emperor's new clothes"-style...
I wrote that she would be pretty nonchalant about it and as others have suggested, it may even shield her from the effects of some esoteric creatures that she prattles on about. Unfortunately, I wrote about how she is handling the situation a full year after becoming a forced nudist.