Step 1:  Make sure the waiting room has interesting things for adolescents such as age appropriate books and magazines.  If they have to wait for you then items of interest can help them to feel more relaxed.  Think about your waiting area, what does is currently have to interest adolescents?

Step 2:  If your young patient has their parents with them, greet the teen first before parents and check if they want their parent in the room to start or if they want to come in alone.  Giving an adolescent some control over the session can help with building rapport.  

Step 3:  Acknowledge that it wasn't their choice to come along.  Questions such as "Why do you think mum and dad have dragged you in to see me?' is better than asking about their problem.  

The above information is just the start of steps used to build rapport.  Even though we love games here at Therapy Tools, I would always use them with caution when starting out with an adolescent in individual therapy.  However, using games in group work with adolescents can assist the group to start talking and sharing.  

Good luck!