There was a subtle shift in the atmosphere as Uhura joined him back on the couch. Spock could feel it, and with it, grew just the slightest bit nervous. This was the good and bad that came with a new relationship; nerves popped up all the time when you weren't entirely comfortable with a person.
"You're welcome," he said, voice soft as if to match her quietness. "Thank you for the dinner. I'm glad you invited me over."t