She whines, tail and head down instinctively as she's trying to signal that she's no threat and acknowledges that this is is house, and is trying to push past him to get inside. As great as breathing and a a beating heart and body heat and all that is, animal bodies always have the distinctive downside of lacking a way of properly communicating with people who only speak human.

And more than anything she really needs to get out of the open, and his doorstep is pretty much out in the open.