Laura was indeed a cautious and suspicious girl. It was what kept her (relatively) out of harm's way since the solar flare. The world had become a bit unforgiving since then and most people were scared of mutants. Her survival instinct had kicked in and she became at least a bit suspicious of everyone. No one was given the benefit of the doubt. They had to prove that they were trustworthy first.
Though she had read about the Danger Room in the guidebook, she wasn't aware that she could really get hurt by these simulations. When he asked if she was ready, Laura nodded and unfolded her arms. She was just about to unsheathe her own claws when she saw Logan unpop a set of his own. Her eyes widened significantly, staring at his claws in slight disbelief. She had never seen anyone with a mutation this close to hers, though her claws were only bone. "You have metal claws.." was the only thing she could manage to get out at the moment. How very eloquent.