Sometimes it’s a bunny’s way of communicating. My bunny will twitch her nose when I talk to her at times. Or she’ll do it when I’m talking to someone and she’s listening. It’s kind of a sign of alertness. It’s nothing wrong at all. Bunnies do lot’s of things that are ways of communicating, just not speaking. (And they can make small noises, too.) Kind of like living with Marcel Marceau.(the mime)

Yep, nose wiggling usually means they are alert and focusing on something of interest. You can try wiggling your nose back at her to see if she responds.