"I'll have a mocha, too - not a cold one, though," Kevin said, "With an extra shot of espresso, please. And here's for my half of that brownie." He grinned and handed over the money, then joined Katie to wait. "So pro-Quidditch, then? What team? I've really been out of the loop on Quidditch for a while."
Which was because he had been in hiding, but he could make up another reason if needed. If she asked. Offering too many explanations without being asked sometimes seemed suspicious.