A Noser
The kind of person who wears a mask like it's a fashion accessory, but leaves half their face hanging out like it's not even there.
She wore her mask like a necklace, but her nose was still exposed.
He had a mask on, but it was below his nose like he was trying to hide from a cop.
At the store, she had a mask but her nose was sticking out like it was offended.