Uhura still didn't look impressed. Spock could probably do a handstand while painting a perfect replica of a Picasso painting and Uhura still wouldn't look impressed. "It's fine," she replied. "I can buy my own coffee," but then they both already knew that, didn't they?
"You should remedy the situation by not living so far away from where you work," Uhura went on. "That's a long drive and in traffic both ways. How do you have time for a life outside of work?" Well, that was a stupid question. Spock didn't really have a life outside of work, did he?