Uhura was probably the last person on earth that Q wanted to see or speak to considering she had a large hand in the battle he was trying to forget. That didn't seem to matter much to Uhura though. She needed Q and she needed him now. There was a situation that only he could handle, so she tracked him down at a seedy bar knowing full well he was probably trying to get completely sloshed.
Uhura took the seat next to Q and slapped a twenty down on the bar top. "Whiskey for me and a coffee for my friend here," she said. "Hello, Q."