Kevin started just a little but when she appeared, but relaxed almost immediately. She was alone, that was a good sign, right? She was nervous, though, and a little overly friendly; her hand, when she held it out, was shaking. He didn't know quite what that meant. It could have been the slime juice, too - did that have long term effects? He wouldn't really be surprised.
But he greeted her with a smile. No point in making this any worse even if it was going to go badly anyway, right? Or something. "Hey," he said, and after a moment's hesitation, reached out to take her hand. "Yeah, okay!"