The difficult thing about the way River acted was... his heart was in the right place. He just... didn't really express that with words. He always came off as grumpy or irritated. He was really just... motivating the only way he knew how.
"Alyssa." He said, nodding slightly. "May I..." He gestured to come inside, seeing as he himself was pretty cold (he was the eye of the sun, for fuck's sake; not used to the cold) and he could only imagine it was blowing cold air in to the place.
He handed her the tissues, showing her what he had came there for.