You will usually be able to recognize a Shawn/Joiner from across the room by his ability to tell of his latest TF2 adventures for at least 10 minutes at a time, in a variety of voices, primarily using the stereotypical "Spy" accent.
Ash: Did you hear that Shawn kid with a funny accent in the second row talking about "headshot"-ing people? Is he a Russian exchange student?
Alex: No, he's just talking about his latest conquests in TF2.
Rode: Joiner, quit talking about your video games! I need to start class!