Theo's eyes perhaps spoke more than any part of him, though the line of his shoulders and jaws were also tense. To someone like Pansy, who was also a Slytherin and also was getting to know him better, he would be readable but not completely so.
"Pansy," he greeted her, giving her a genuine smile. He had missed her while away--he was already growing fond of her, which was likely a good thing. Though his vacation had truly been sorely needed and time with Verity to reinforce their friendship had been enjoyed. He missed his bestmate fiercely sometimes.
"I should, yes," he said, entering the door at her invitation, reaching for her hand to kiss it politely like he always did. "Something came up and I brought Verity back earlier than we expected. Still have to go back and get our things, though."