Wolves and dogs really had the monopoly on animal smiles, but the gesture was similar in cats as well - a dropping of the jaw, which allowed the corners of their mouths to curve almost like a smile but without the aggression that came with baring one's teeth. Lauren definitely wouldn't be quite so dumb as to do that with a bunch of wolves around her. Just because they were nice now didn't mean they didn't have a set of instincts for self-preservation, even if they weren't the protective types - which, judging the size of the other wolves with the big one, was going to lean heavily on the side of protective.
So she gave him a kitty grin in appreciation for the returned paw gesture, and did a little sniffing of her own as he wandered around. She'd been out long enough that she should smell mostly of bobcat; she was pretty sure all her earlier running and rolling had gotten most of the human off. She kept her ears forward and up as they explored each other's scents; her sense of smell wasn't nearly as keen as a wolf's. No, where the feline family excelled was in their eyesight, evolved to track the tiniest movements of rodents in grass. It was actually pretty distracting when you weren't used to it; Lauren had needed a lot of practice when she'd shifted to the bobcat for the first time to keep from losing focus.