Lorna was fully ready to retort 'I am human', even going so far as to open her mouth... which stayed open as she found herself face to face with... well... herself.
Her thoughts immediately dispersed and were replaced with a blurted, "That's so cool! Can you do other faces? And tails? Or wings? Or full blown animals?" She was up on her knees reaching out for Mystique with a tentative finger to poke at her skin. "Is it an illusion? How does it work?"