It had been a week since User was found alone locked in a damp cave on a lost planet's moon. The crew of the USS Enterprise had no idea of how User came to be locked from outside in this empty planet. They saved and brought to the starship User, who didn't say a word since the rescue. The only thing they knew was User's name.
The crew decided to earn the trust of User, who might be confused and lost. They all one by one came to User's cabin to talk and try to convince them to comunicate in one way or an other.
Spock entered in User's cabin and raised his hand in a Vulcan salute. "My name is Spock," he said calmly. "I am an officer of the ship's science division."